I'm guessing all the type of stuff that needs a pc to run it such as FPS, racing and flight. I'm not too interested in the basic demo and time passing games like fishing and beat saber etc
Just like Unseul said above, don't base your game choice in VR solely on the games you like to play in pancake mode. Flight Sims and car sims aside, the games you end up liking in VR might surprise you. For instant, I hate Rhythm games on the PC and console, so I thought I wouldn't like Beat Saber either but ended up loving it and buying more of the same type of game. I bought Pistol Whip which has become one of my favourite VR games.
Walkabout mini golf has also surprised me. It's fantastic in VR, but, I wouldn't play any kind of golf game on normal desktop gaming. Even playing a table top dungeon and dragons game like Demeo is really enjoyable in VR.
My advice is keep an open mind when you get the headset, try out games that you wouldn't normally play or even consider on normal pc gaming.
As for using the Quest 2 standalone until you get a PC. I have a PC now and barely use the Quest 2 on it. Most of my VR gaming is standalone at the moment.