>>272528298
>why is movement such a big issue in VR?
google "ocular-vestibular mismatch." Basically, your eyes and your sense of gravity fuse into a single sense of motion. If they don't match, most people's bodies don't like that

>are there any games where it's solved?
Yes. Most of them take place in a single room, use teleport, or have very complex rendering tricks to make it so that your brain doesn't get upset by sliding motion

>are there any games that let you just fucking play a game sitting with kb+m?
Basically zero. Embodiment is a major part of your sense of presence. Moving in the VR world makes it feel much, much more real. This is why Beat Saber is as popular as crack