I use it, it's one of my core tools. It is fantastic. Reddit links all open with old.reddit.com (until reddit inevitably decides to kneecap that service) and I

I use it, it's one of my core tools. It is fantastic. Reddit links all open with old.reddit.com (until reddit inevitably decides to kneecap that service) and I can have all YouTube and twitter links open in invidious and nitter. You can use regex or wildcards to basically redirect any URL scheme to a different one, and mutate any URL string you like automatically. IMO this sort of thing is what extensions were made for.