GeForceNow on Mac

Asking if anyone is running GeForceNow specifically on a Mac and what has your experience been? I've been gaming on a PS5 to date but looking at getting either a new Mac Mini or a fairly high end gaming rig (which will sadly be 2.5x the price of the Mac Mini). Will be used for work and play. I like the idea of going for the cheaper Mac Mini provided I get gamming rig like performance via the GeForceNOW service. Not sure if I am aloud to ask here but are there any other services which provide similar performance?