What's the best way to use YouTube to proxy for unblocking videos? or How reliable is YouTube to prox

Lol, I feel you on the VPN slowness. For youtube to proxy stuff, I’ve used UrbanVPN’s free version.

It’s not the best, but it’s okay for short vids. For longer stuff, I switch to ProtonVPN’s free servers.

Just avoid logging into your YT account while using it—better safe than sorry.