Anyone who’s been using privacy-respecting frontends for some time will recognise Piped. A YouTube frontend with no ads, integrated SponsorBlock, return dislikes, and a customisable UI.
Piped also allows you to subscribe to as many channels as you want without ever logging into a Google account. You can export your subs list from YouTube and import them to Piped seamlessly.
If you’ve never heard of it, give it a glance at https://piped.video. For more instances, check here.
that’s weird, it’s working fine for me. maybe you could try hopping to a smaller instance and see if that helps? maybe it’s also a regional thing im unaware of.