>>384639483
I can't speak on VR vs flat, but I've been playing monitor+Hotas and it's been an absolute blast. I still find it to be very immersive like that but I think the Hotas plays a big part in that. 
Absolutely love VR and I think it's the best way to play vehicle-focused games, but my GPU can't handle super-sampling most games, so it's turned into a "Beat Saber machine" since that's one of the few games with visuals I can tolerate for several hours. Can't overstate my disappointment when I found out I couldn't play MFS2020 without it feeling like I had lost my glasses.