Same. Even then, a bunch of sites are down. Maybe only ones behind Cloudflare? So far I've been trying to hit the various down detector sites and none of them will load. Google, Reddit, Hackernews are all fine.

Same. Had to go through the entire troubleshooting process --- is it my internet connection? my DNS resolver? firewall? ISP starting to filter DoT queries somehow?

Only last in my mental list was the possibility that Cloudflare would be down.

Hope they publish a detailed post-mortem. It's always fun to read (but certainly very painful for those directly involved in writing it).

1.1.1.1 is dropping ICMP pings while 8.8.8.8 is not but 8.8.8.8 is still returning DNS errors.

That only worked until all the records expired from Google's cache.