Sure, I suppose all that (waves hand at third-party cookies situation) is what I meant by the long phase out of them. As far as I can recall those defaults were signaled a fair amount of time in advance.

I have sympathy for anybody with a legitimate use for third-party cookies whose life has been made more difficult by bad actors abusing features to maximise their own profits.

Same tragedy that finally caused origin-based cache partitioning at the expense of some performance.