You are correct about it being a YouTube TV issue, however, it's a YouTube TV issue only as it applies to specific Roku devices such as the Streaming Stick+, and some TVs with Roku integration (not sure which others). I have had the opportunity to try a number of different streaming devices, as well as streaming services, and not one experiences the issue. Only YouTube TV on Roku, but not on my Ultra 4s.
I presume that those integrated TVs have the same hardware inside as the streaming stick, and while I'm no expert, it seems logical that there's some sort of firmware or hardware issue with those Roku devices that won't allow a proper fix, and Roku doesn't know what to do about it. Another possibility is that I find it no coincidence that Roku had some very well publicized issues with YouTube TV this past year, and that they are the only ones who are having this issue. Conspiracy theory? Maybe, maybe not.
My family is using Firesticks right now without the freezing issue, but they keep complaining about the lack of the simple Roku interface that they're used to. As I've said previously, I'll hang around a bit longer to see what Roku does, as I have considerable dollars invested in their devices...4 Streaming Stick+, and 3 Ultras, all of which used to perform very well with YouTube TV, but at some point, I have to move on permanently, and have them get used to a new interface.
