We used to leak approximate creation time all the time back when everyone used sequential keys. If anything sequential keys are far worse: they leak the approximate number of records, make it easy to observe the rate at which new keys are created, and once you know that you can deduce the approximate creation date of any key.
UUIDv4 removes all three of those vectors. UUIDv7 still removes two of three. It doesn't leak record count or the rate at which you create them, only creation time. And you still can't guess adjacent keys. It's a pretty narrow information leakage for something you routinely reveal on purpose.
UUIDv4 removes all three of those vectors. UUIDv7 still removes two of three. It doesn't leak record count or the rate at which you create them, only creation time. And you still can't guess adjacent keys. It's a pretty narrow information leakage for something you routinely reveal on purpose.