If anything the skew within the platforms is to prioritize pro-palestinian views https://twitter.com/committeeonccp/status/173279243496103143...
It also seems like these platforms create (rather than support) anti-Israeli views: https://twitter.com/antgoldbloom/status/1730255552738201854
US views skew pro-israel, and GenZ is closer to 50/50, so if there's something going on online, it's not in favor of Israel.
It's probably relevant that there are 1 billion Muslims to 16 million Jews, and that the largest relevant population of pro-Israeli internationals is India and Indian Hindus, and they are not on TikTok (blocked in India).
The videos of destruction and death in Gaza are far more horrific than corresponding videos in Israel, because the scale of what Israel is doing to Gaza is so much greater than what Gaza has done to Israel.
Another way of saying it is, it makes sense that someone who spends hours on apps optimized for empathy-based addiction would be more sympathetic to Gazans than someone who reads the newspaper or watches talking heads on TV news, since the latter portray the occupation as a two-sided tit for tat.
[Small addition: I've actually seen videos of (alleged) hamas torture, particularly the torture and killing of a specific woman, from Oct 7, not taken down from TOS. I just was under the impression, because there are literally more Palestinian dead people, there will be more photos of dead Palestinians.]
[Edited to add, since I'm apparently posting too fast: no, I really do mean there were censored videos of that naked woman in the back of a hamas truck from Oct 7! And that one video of an Israeli woman who lives close enough to the bombing that she can hear it in the context that it gives her peace to know the bombing is happening!]