It's fine when it's a non default option. Like use x.x.x.x for DNS, x.x.x.y for DNS+adblocking, x.x.x.z for totalitarian corporate blocklist that doesn't let you do anything fun
I believe cloudflare only blocked archive.is on their "Families" filtered dns. I've been using their normal 1.1.1.1 and haven't encountered any blocks.
Once Quad9 blocked Halo MCC XBOX Live -> Steam achievements, several fileshare services (probably used for malware somewhere but not my usage) etc...
1.1.1.1 blocked archive.is or got blocked by them or something...
Gone back to Google DNS (gasp) for now, yes as a European... no blocking, fast, never goes down.