if I should wait for a steam deck 2

there will alaways be The Next Device. There are no real hints that it will release anytime soon.

So if you’re interested in picking one up, now is a good of a time as any. You can also save some money by getting a refurbished 64GB model and upgrading the ssd yourself (takes just a couple minutes, a screwdriver and a thumbdrive with usb C to reinstall steamOS)