There's a scene when they shoot a moose and are later shown eating it's meat. A sheep is graphically shown dead in a field, with it's insides ripped apart (on full screen for a few seconds). There are coyote furs decorating a part of their cite.
Alma is clearly unhappy with the aggressive anal sex Ennis foists on her instead of the intimate, face-to-face, normatively heterosexual sex she'd initiated.
Ennis mentions this happening while telling the story of what happened to a local gay man when he was a child. During a flashback, you see the man’s corpse from far away with bloodstains around the crotch of his pants. The actual injury is not shown.
Maybe not excessive in terms of frequency, but excessive in terms of severity. There's a sheep whose body was ripped open by a predator. You also see a scene of Jack being murdered pretty brutally.
Perhaps, depending on how sensitive you are. The tent/sex scene is pretty dark and heavy, and quite zoomed in. I mean it's a tent with two full grown men in it, so it's gonna be a little cramped. But there's no sense of panic or distress from the characters due to these conditions, and certainly no actual mention or even symptoms of claustrophobia.
Ennis and Jack are caught twice without them knowing (until much later) by Alma who spied on them through a window, and Joe who spotted them through binoculars.
the sex scenes you can't see genitals besides breasts, the only time you see genitals is when ennis and jack jump into the lake off a cliff but its shot from pretty far away
Ennis' parents were killed in a car accident before the events of the movie. The crash is just mentioned in passing and not shown or described in detail.