RT Paul Kinlan
Mozilla set up the the BCD (Browser Compat Data) project and it's a goldmine of information that we should use more.
I built a simple demo
https://paul.kinlan.me/bcd-a-hidden-web-compat-gem/
https://the-web-of.glitch.me/

https://twitter.com/Paul_Kinlan/status/1408366640073412608