Invidious still works very well, however it is an ongoing battle with YouTube. They ban an instance and the instance’s ban evasion routine tries again, or in the case of IP range bans migrates to another provider and the game goes on. Despite this, it is the only way I know of to access YouTube relatively pain free using a public VPN provider. By now YouTube has blocked a lot of public VPN IPs. To me, this advantage makes it worth it.

The best way to keep up with which instances are currently functional is via the Invidious Matrix room, https://matrix.to/#/#invidious:matrix.org. You can also check the instances list https://instances.invidious.io/ but it may get out of date sometimes.

Finally, I’ve found the best way to use Invidious is via FreeTube (Linux) or Clipious (Android).

The ultimate in privacy for YouTube is Invidious https://invidious.io/, which fully proxies your videos from YouTube through an Invidious server. Every once in a while YouTube will get the upper hand and figure out how to fingerprint and block the servers, but so far the community has always figured out how to circumvent it. One advantage is that you can feasibly use a VPN with Invidious; without it, you have to keep hopping from VPN server to VPN server until you find one YouTube hasn’t already blocked, especially on a large public VPN like ProtonVPN. This applies to NewPipe as well, since NewPipe still tries to talk to YouTube directly as far as I understand. On Android I use Clipious as the app to access the Invidious servers.