A bird dies in the crimson waste

A horse and a lizard are blasted with magic that changes their appearances but this does not appear to hurt them in any way.

The series prominently features battles involving giant robots that resemble bugs.

No horses die, but there is a scene where a horse is in serious danger and could have died. The horse does survive.

a cat like character uses up alot of her 9 lives,but never permanently dies.

Mostly robots, but they're realistic enough.

In the first episode in the Crimsom wasteland, there is a three-headed snake chasing The BFF trio but it is very brief

No, but a character is briefly seen to be drinking in S5Ep12 what is implied to be alcohol.

It's not graphic, but a character gets captured, is restrained by some magic stuff and is shown to be in pain because of it.

No, but you're briefly led to believe so.

An eye that appears to have been severely damaged in the past is shown very briefly.

The protagonist uses a sword in battle.

[SPOILER] One of the main characters loses a parent that plays an important role in the show during season 3

This person is not a child though, and is actually in her 30s.

There is kidnapping, including characters being held for some sort of ransom.

Adora is stalked by both Catra and Shadoweaver

Horde Prime is able to control his clones and the people in his empire and inhabit their bodies. It's similar to possession but it's not exactly the same. This only happens in season 5

There's a bunch of holographic people tho, idk f that's similar enough maybe

There's a scene where the characters bathe though.

S2E3 the main group of characters goes to a town that is abandoned and possibly haunted. There are some light scares like a door banging shut and scaring the characters

A character in the Crimson Waste spits and it almost hits Perfuma

in S4 E10, bow v* off-screen with clearly fake sound effects, but this could be upsetting nonetheless. Around 20:40 minutes in, right after he says "Wow, that was a lot easier than I thought it'd be," if you want to mute.

while it’s not precisely electro-therapy, the character in captivity is forced stuck by something similar.

Somewhat. There’s a “recharging room”, but not exactly a hospital room.

Some kind of tubes are connected to a character, and while I don’t remember any pointy ends actually being shown, the implication might still bother you.

It was revealed that the character of Mara, the previous She-Ra, had died due to crashing a spaceship into the desert, implying it killed her

catra, who definitely does have lots of childhood trauma and some form of mental illness does get violent with other characters during the series. (ex: threats, fights)

Adora has anxiety attack nightmares/night terrors whenever she sleeps. I do wonder if it’s an imitation of ptsd because she can’t calm down/relax and is always on hyper alert.

The title character's main arc deals with coming to terms with the fact that the organisation that raised her is in fact evil, and lied to her all her life about their benevolent intentions. Much time is devoted to her overcoming the effects of this indoctrination.

I don't know if this counts, but I thought it might be worth mentioning. An autistic coded character is manipulate into believing her friends don't care about her. A lot of characters treat her differently and with little patience because of her difficulties in social interactions. This impacts her deeply as in season 4 she gives a speech about not belonging and heavily implies that she would rather die than return to said friends.

Characters are held captive in small prison cells on multiple occasions.

There are bright light effects but they don't flash, the screen just gets bright. S3E5 and S3E6 have a lot of flashing/glitching effects throughout that could be triggering. S4E7 has a lightning flashing throughout the episode S1E10 has the use of lightning a lot

The main couple grew up together in an orphanage-like system but they’re not related.

Overall the show is very inclusive and has a positive outlook on differences (except the bad guys). Scorpia sometimes cannot do things they way others do due to her having claws for hands. People in the Horde are not accommodating. Entrapta is on the spectrum and people are not always understanding, but still support her. SPOILERS: Hordak is revealed in season 3 to be a "defective" clone who was sent to die because of it.

There is proper & respectful body type inclusion in the show.

I’m Jewish and Double Trouble has nothing to do with Judaism or Nazism. The show doesn’t address these topics at all.

a lesbian character dies but is revived in season 5, and another lesbian almost dies during the show finale but lives because of her girlfriend. their deaths are not related to their sexualities at all.

Not in the show itself, but it's worth noting that some translations (like Spanish and Polish) change the non-binary character into a binary gender

Spoiler: Very happy ending!

There is a crashed spaceship seen in Season 3, episodes 2 and 3. Later in season 4, in the episode “Hero” a transmission is played of when that spaceship crashed.

Nah, but it's played at a lot

There are instances of weird space vehicles being driven super carelessly, though.

A teenager is raised as a child soldier and physically abused on-screen and of screen by her superiors/caretakers via electrocution, asphyxiation, and an (offscreen) blow to the face. The character shields their face and flinches in the presence of their caretakers.

Dealing with the after-effects of abuse from a caregiver is one of the major themes of the show

Characters gets scratches sometimes

Sci-fi type death ray blasters, but they are used in combat.

No one drowns, but there is a moment where a character is overwhelmed by water and is showing having difficulty staying above said water. The scene is meant to be comical, but may still be disturbing for some.

A teenager is put in a forcefield without oxygen. It has subtext of domestic abuse.