I just finally got upgraded from 10 days of PRO per year to 15 days, literally this month.

oh, and lest you operate under incorrect assumptions, many (most?) US employers combine vacation and sick time into PTO time. so that's 15 days per year of vacation time and sick time, combined, so if you take a two-week vacation you better hope you don't catch the flu or COVID or anything else that'll knock you out for more than a week – or for more than a week minus any other miscellaneous time you need off, like, say, going to the doctor, taking your pet to the vet in an emergency, going to your grandma's funeral...