All my non-system Mac apps are taking multiple seconds to a minute to open right now. Turn off Wi-Fi => everything opens fast again. Thanks.

Ah here it is twitter.com/lapcatsoftware/status/1326990296412991489

Looks like a lot of poeple are seeing this. twitter.com/_inside/status/1326996806107017223

See twitter.com/keitaitok/status/1326996932477140992

Installation from Mac App Store has also been unreliable for me, following long propagation time for update. And App Store Connect returned from unusual errors a few mins ago.

And another. OK I’ll stop now. twitter.com/panic/status/1326993532138086401