I almost never get videos where people actually die unless I really want to (and usually, I don't). Lots of close calls, suggestive images, but an actual death caught on camera, no. Even the killing of animals is not something I see often, even though it is part of daily life for many farmers. Maybe some of it slips through, but algorithms tend to not let that kind of content pass.
If anything, I find mainstream news to be worse. They don't show the act of murder itself, but they are definitely going to show you a bunch of scenes and let your imagination fill the gaps. They constantly tell you how ugly the world is and how it is becoming worse. It is all war, natural disasters, climate crisis, overpopulation (or is it underpopulation), toxic chemicals, etc... Yes, these are real problems, but these are problems we solve. Wars end, natural disasters are better predicted and mitigated, we are using more and more renewable energies, it turns out that population self-regulates, toxic chemicals get banned and replacements are found, etc... It seems we are breeding a whole generation of people who think we are doomed instead of seeing all these things as obstacles to overcome.
Overall, I find social media more positive than mainstream news. I dislike how they turn our brains into mush, but we get more cute girls dancing and less massacres in Gaza.