[2023] How to be prepared when A21 is finally released (help and tips)

Originally posted by ⚜ JOST AMMAN ⚜: I was wondering if the mods deem this post "good enough" to be put as a stickie maybe?
I'm just saving you guys some work for when A21 drops, you know? ;-]

I dunno, Jost.. Do we really want more users thinking you're a developer?