Does a cheat cheat exist with common anvil commands, tips and tricks, snippets, etc. ?
No, it doesn’t but it might be a cool idea. I personally never felt I needed one because the auto completer + documentation was usually enough.
I have often thought about actually making a single app that demonstrates all components and as many Anvil features as I could fit in. But that would really just be for fun. Learning Anvil is probably easier using smaller focused tutorial apps.