Makes sense to me. I'm a Pop! user since 22.04 and the wait is painful, although the blog posts definitely help a bit. Currently I have no problems but if something breaks I'll try out Nobara I guess. My /home is already partitioned so I can make that hop with minimal loss.
Looking at SteamDB, it looks like it checks VC2015 is installed. So you'll want to check if your bottle has at least one of: vcrun2015, vcrun2017, vcrun2019 or vcrun2022. It's pretty likely that's a required dependancy.
It also installs "DirectX Jun 2010 Redist" which installs or updates a bunch of libraries, I think most if not all of these can be installed to your bottle too. I don't know which are required but it's a place to start.