[DIYgod]

I can still use RSSHub to subscribe: https://rsshub.app/youtube/channel/UClOGLGPOqlAiLmOvXW5lKbw

It also supports more features: https://docs.rsshub.app/routes/social-media#youtube

[renegat0x0]

In some other threads people write that invidious also may have problems. Eventually any bot can have problems when reading RSS feeds. Maybe the ones with API key will not have problems. Reddit: https://www.reddit.com/r/rss/comments/1aduw8j/did_youtube_ki...

Google issue tracker: https://issuetracker.google.com/issues/322736318?pli=1

Status: Won't Fix (Infeasible)

Unfortunately, there's nothing we could do here if it's the anti abuse mechanism that prevented the call to happen.

Also, this tracker isn't meant for that RSS issues. This issue tracker is mainly for Youtube APIs described in the link below:

[JamesNay]

... and you need an api key, if you want to run that service yourself