I still dual boot but I find myself in Windows less and less. Specifically what I use it for is a few games, Fusion 360 (my brother is happy with FreeCAD but it’s not what I’m familiar with), and I need to use Windows for OffSec exams because the invigilator software doesn’t work with Fedora.
I only realised that Windows was required for the OffSec exams about 6 hours before I was due to start, I was bloody glad I had that Windows install good to go when that happened (it’s a 24 hour exam, notoriously hard).
Let me know if you figure out how to get UO working on Wine. I have to use the online client.