PeerTube Companion is an experimental WebExtension aiming to improve user experience with PeerTube. Right now, the extension redirects to a PeerTube version of a video, when trying to reach it from YouTube, if it's available on PeerTube.
UntrackMe Alternatives
UntrackMe is described as 'Once set by default to open Twitter and YouTube links will transform them into Nitter and Invidious links and delegate the action to another app. It also supports Google Maps links to transform them into OpenStreetMap links or Geo URI' and is a Privacy Tool in the security & privacy category. There are more than 10 alternatives to UntrackMe for a variety of platforms, including Mozilla Firefox, Google Chrome, Web-based, Brave and Linux apps. The best UntrackMe alternative is LibRedirect, which is both free and Open Source. Other great apps like UntrackMe are Predirect, YT Siphon, Nitter Redirect and Linkahest.