First issue was the downgrade failing to run because it claimed I was missing an ssh library. Then I found a work around that involved grabbing the uncompiled source and running the script from there, but that failed to connect to steam. I finally downgraded using a manual method that took forever, but it worked. Once I finally got it all running, I hit the infamous crash after the train ride bug.
I haven’t even been able to get it work using Nexus mods with my Steam version. I’m getting the intro screen/menu, but it never actually loads a new game after that. I’ll just wait a few months/years til I remember about it and try again.
Not really. Most large story DLCs for any Bethesda game require all expansions. I suspect it's for assets, but I would also just pick the largest use case (and already owning the expansions most certainly is the largest use case) and say it's a requirement also, so I'm not chasing down edge cases for people all day. Just the rough math of releasing something you have to support afterwards.