I had my phone taking photos in HEIC for a couple months. i ended up switching back to .JPG because both signal and whatsapp stuggled with it

plenty on ebay

most of these old systems dont have soldered RAM a few extra gig of DDR2 RAM would be dirt cheap on ebay too

can you not disable swap? force it to stick to physical RAM.

That caravan looks nice

Valve is pretty well liked. not sure you can really call them a games publisher any more though.