I haven’t really had the chance to test it much yet, but the Libredirect extension seems pretty promising to me
LibRedirect – Get this Extension for 🦊 Firefox (en-US)

Download LibRedirect for Firefox. Redirects YouTube, Twitter, TikTok... requests to alternative privacy friendly frontends.

Just tested it for Instagram, because I get a lot of that annoying BS. Unfortunately not a single instance is working for me. But afaik I might be able to soon up my own frontend instance and add it to the extension. Will check that out when I get bored.