Hopping on this, is the stuff I've already got for CV1 backwards compatible?
Would love a resolution upgrade but I'll just stick with CV1 if I can't play the stuff I've already got
you can play everything you have on the PC through Virtual Desktop or the Link cable.
But, you can also get games for the Quest 2 to play without having to connect to a PC at all. Some of these games are crossbuy. That is, if you buy or own them already on one headset, you can download them for free on the other headset. For example, if you bought Until you Fall for your Rift Civ1, you would be able to download it onto your Quest 2 for free.
Not all games are crossbuy. Beat Saber isn't, for example.