>>339726320
if you don't need to play 360/180 VR videos, bigscreen with mpv.net or vlc is the easiest and has the nice dynamic lighting, and also supports side by side/over under 3D if you have those. mpv/vlc with your favorite vr overlay (oculus dash, desktop plus, xsoverlay, ovr toolkit) is fine too.

if you do want 360 vr videos I think you're probably fucked. maybe try whirligig I guess, but last I tried all the desktop players are broken in some annoying way.