Looks quite interesting. I could really use a Windows box that I could use for a few games while I'm isolated not at home with only my Macbook Pro.
* allegedly. Tried to set up Paperspace and Parsec without result.
It really depends on the game.
For instance, Factorio, which is enormously popular on HN, has a perfectly functioning Linux version. Many other games do too, and some games even perform better on Linux than on Windows, not to mention having a better user experience on Linux (especially if you are technical and know what you're doing).
I have an old Linux laptop, and Factorio performs well enough in single player, but I run in to serious performance issues on multiplayer. It's be nice to be able to run this Linux game on a more performant Linux machine, without shelling out the $$$ for a new gaming rig.
Further, I'd like to avoid Windows as much as possible, where it can be avoided.
So the advantage of Paperspace would be that you can play many more games than you can on GeForce NOW.
Some publishers have been very anti-competitor regarding it and taken down their entire libraries but there is still a ton to play.