For a while, I've been quietly preparing for the day when YT becomes unusable. I've been using Odysee and Peertube to see if they are viable options. To some limited extent they already are, but there are still lots of room for improvement. Just like Mastodon feels like the early days of Twitter, Lemmy feels like the early days of Reddit, Odysee is a bit like YT once was a very long time ago.
in recent years, YT has been working hard to kick out certain types of channels, so nowadays you can find that sort of content in some of the other platforms. It depends on what you're looking for, so the experience can be anything between awful and great.