It used to just be one, but they upped their system requirements awhile back. And again more recently it seems. The first was dropping 32 bit processor support as it accounted for something close to 60% of all crashes with less than 5% of the playerbase running a system that old. I don’t remember the exact numbers, but one of the devs who works on optimizing everything and bug hunting made a comment on his stream many moons ago.