And justgoogd GBA games in general

I can’t remember the name off the top of my head, but there’s a Godzilla fighting game! It’s amazing

I had a play with it a little while ago, and it has a guide for using and saving it with OneDrive (you just rename the file IIRC)

It doesn’t. (Or didn’t when I used it) It really was just a basic notes app

I used standard notes a little while ago, it seemed like a nice phone note app replacement with a decent number of markdown based plugins
I don’t think it’s trying to be a Notion or an Obsidian

Maybe to Gifycat? It’s like a nice short-term storage