Bethesda is now owned by Microsoft meaning Starfield will be on gamepass day 1. Gamepass already heavily restricts how you mod your games with protected folder bullshit at the OS level.
I have a feeling that it'll be really hard to use nexus with Starfield if not entirely impossible as Beth and Msoft will want to kite you through their new mod store where they take a sizeable chunk from mod makers
Fallout 76 isn't a real mmo. The mp structure was total bs. You couldn't host your own servers and it was a pita getting in the same server as your friends. This was all a choice on Beth's part. They waited i think over a year before you could even rent your own server.
They could have let you host your own dedicated server and mod to your hearts content, but fucking Todd wanted to slaughter the golden goose. And now we havent had an ES game in twelve fucking years so they can make shitty gamebryo mass effect that no one wants nor asked for.