You might find the steam tinker launch useful. One thing it can do is download and launch Nexus’ Vortex Mod Manager inside each games proton prefix. Which should let you manage mods for various games especially elder scrolls and fallout games. Not tried it with fallout 76 though.
Not really taken over, more just a rebranding. Both are owned by netlify, started off as a list of static site generators you could use with netlify (aka all of them they could find) but then they just rebranded the site and gave it a fancy name like you have with all the other web stacks you have these days.