Speaking as someone with no social media (big grain of salt), whenever I've heard reporting on people seeing the genocide on their phones it was always referencing tiktok. They never said "people watched children be exploded on twitter or Insta". That could be due to user preference or whatever, but as an outsider, I have the ambient notion that more of this kind of content was coming from tiktok.
More concretely, in a lot of the stuff that came out of the twitter files, it's clear that the US government does have, what I would classify as, inappropriate contact with american social media companies that can controle narratives. Without saying something with absolute certainty, the statement he's making sounds pretty reasonable.
Also nothing is just one thing, there's probably a ton going on.
You can always get a new Chromecast (we were forced to as the ancient bullet proof one told us to "fuck off, I want to die"). The new one has a remote control and apps, which I always thought were missing from the minimalist Chromecast family of products. So look at us, now we have a shitty roku when all we wanted was a device that I could send things to from my phone. Needed and wanted nothing more, but I got it. My tone is muddled here, so I'll make it clear that it's worse than it used to be, and I'm annoyed I was forced to pay to downgrade.