In the game options under "Accessibility" there is a setting to toggle off "sexual and violent cinematics" which I think is different than the "Show Nudity? Y/N" that comes up when you first launch the game. Might give that a try.
Probably not everything you're after though. I can imagine a Mod or game setting that simply removes the blood splatter on character avatars or as an environmental thing (with like the pools of blood), but for other stuff I guess that would be harder - say where it's built into the area design. From the Nautiloid brain surgery on, which is first Roll of the game, kinda baked in there. Chop Chop, and Orin and all that.
I'm pretty sure I'm at the opposite end of the spectrum for blood squeamishness. I just watched Evil Dead Rise and thought 'Oh wow! Queen Aslaug deserves the Oscar for best Necromite!' hehe.
If it's Hollywood horror I'm down for whatever, like give me the full Shining, but then I still don't really vibe on gore in a medical context. So sometimes I have to put up one hand, say with the Surgeon in Act II. But of course the Twisted Sisters at the House of Healing are some of my favorite characters in the game, so none of it makes much sense on my end.
I have some irrational food phobias from childhood which are more powerful than anything with the blood and gore. I mean don't tell Lae'zel, but I can't even eat Ranch dressing! I find mayonnaise to be the most disgusting substance in all the Realms. It skeaves me out like nothing else. I do feel like I made some progress on that count owing to BG3, but it's hard to know what will ring the bells ya know. My favorite animations in BG3 are when Monsters get burned to a crisp with Firebolts or Guiding Bolts and such. To me that's the BG3 equivalent of the BG1/2 chunk out animations I was so fond of. But I get the desire for a no Blood mode. My ex was a phlebotomist, so it makes sense. Not everyone wants a Fury Road probably. That said, I think they earned some goodwill from me by leaning into it so hardcore. I mean they basically gave us the BG version of that lawnmower scene at the end of Dead Alive lol.
Anyway, not sure cause I've never clicked it. But uncheck that setting to see if it handles some of the more extreme things maybe.
ps. Here's the option, under the tab on the righthand side...
It's kinda hidden away there. I only noticed it cause I always check Accessibility to see if they somehow added Y axis inversion for controllers.