I had a 2 now I have a 3 and the difference is massive. The standalone stuff is as good as my PC is for PCVR; actually a bit better. And my PC was purpose built for mid-range VR gaming. I can't even stand to play VRchat on PC now because it looks and runs like ass compared to the standalone Quest version on the 3. Hella makes me want to upgrade the PC.
Not to mention the comfort features, the weight difference, and more. It is definitely worth the extra $200 from a Q2.