I get why sync of mutiple machines matters for ordering and causality, but why is it a problem for uniqueness?
But UUIDv7 looks pretty awesome:
> What is a Version 7 UUID made from?
> unix_ts_ms: 019e0c7bfe93
> ver: 7
> rand_a: 0b6
> var: b
> rand_b: 55a99e023294673
So please ignore my previous comment :)