Ugh, I’m not surprised, safari really is the ie6 of the future.
From an outsider’s perspective, they really seem to go out of their way to implement specs differently from everybody else, and they don’t bother cross-checking until users file bugs - which is largely too late because fixes are tied to iOS releases most of the time and won’t get released till the next year
(I ran into a similar issue a few months back with samesite cookies, which works for all other browsers - even edge - but not safari)
