what you now need to do is buy a lottery ticked when your money indeed arrive

how stable is ultra settings for ya? how many fps etc… and did you use fsr ingame or the other ones wich are ingame available?

if you think the OS sucks, you can always try another OS like bazzite or something like that.

try to reimage with the steamos iso and see what happends.

you need a usb-c stick or usb stick with converter to usb c or a hub or something like that

Please confirm with sandisk and the serialnumber on the back of the card if the card isnt fake.