some of the cosmetics are locked behind a season pass, some other can exclusively be obtained by individual purchases, and pretty much every else (and also some of the things locked behind the season pass) is obtainable through in-game money in a way that you can probably just barely get everything if you grind it to death absolutely every day, or you can buy in-game money for a hefty price
and a lot is time-limited to pressure you of course
this is maybe made worse by sky: cotl being uh, kind of a one-time experience and then exploration
once you're done exploring, all that's left is the grind to collect the cosmetics, sure you can revisit, maybe try to speedrun, but…
This is a small personal instance running on a couple small ARM servers at home.