My number one problem with notes apps is that they all take too long to open a new note, and try to sync themselves when opened, often slowing everything down. Especially if you have a slow / choppy connection (fully offline is usually ok, but barely online is the worst). I have a literal supercomputer in my pocket, yet not one app let's me open and start writing a critical note in less than 500ms. To this day I stil…
try Google keep. there's a shortcut you can make that with a single tap from the homescreen creates a new note and brings up your keyboard for typing. after you're done you don't have to even click save to persist it. it also auto syncs in the background. I've been using it on iOS for years
And it works offline and in the web browser.