I think we should promote Odyssey instead of YouTube. YouTube can also fuck people over any time over like reddit and it is in a much better position to do so. So if a creator has an Odyssey channel as well, why not provide an Odyssey link instead?
I use RSS to track my "subscriptions". When one of those creators finally move over to ANY other platform other than youtube, I replace their youtube feed with that other platform. So all my subscriptions are in one place, but I'm not specifically tied to youtube.
Edit: I also don't need to login to my youtube/google account at all.
Getting the channelID is the worst part of the process. Let's take Hacksmith Industries as an example though. You visit their page, https://www.youtube.com/@theHacksmith. Head over to the "About" tab. Then find the "Share" arrow. When you click that arrow you'll get "Share Channel" and "Copy Channel ID". Copy "Channel ID" will give you UCjgpFI5dU-D1-kh9H1muoxQ