You can use Libredirect, an extension that redirects you to privacy-respecting alternatives to websites, and update it in the settings to make it automatically open in Freetube. https://addons.mozilla.org/en-US/firefox/addon/libredirect/

I’m still keeping up the Invidious link since exactly in the Privacy community rules, it says that there can’t be any links with any major tracking requests on it. You can easily just change the link yourself if that’s the case. If none of your friends are on revolt or matrix, that’s an issue on your end. You can just make your own rules and ask people to contact you on only private platforms or via email. Which is exactly what I’ve done when I was migrating from Discord to Revolt.

However, if you absolutely have to use Discord, which I wouldn’t recommend, the least you could do is disable the diagnostics and only use it in a private browser or a open source client like Datcord or Spacebarchat.

https://github.com/gamingdoom/datcord

https://github.com/spacebarchat/spacebarchat