[yorwba]

AMP is not bound to hosting on Google, Bing now has an AMP cache as well: https://blogs.bing.com/Webmaster-Blog/September-2018/Introdu...

And since you mention Cloudflare, I searched a bit and found https://www.amp.cloudflare.com/

There are problems with AMP, but Google exclusivity is not one of those problems.