Earlier quoted context omitted.
Slow in the sense of “idea->Search for app->Open app->new note->type on screen” vs “idea->alt tab to terminal->type on keyboard.” It’s probably only 2 seconds vs 1 second. Not a huge time amount.
This is a dumb question but have you tried, like, putting your chosen Note App somewhere prominent in your phone? Like, on the first page of the home screen, or in the dock if you’d on iOS? But whatever works, if you prefer to lose an idea because it’s “faster” to wait until you’re at a keyboard, it’s your life. Or just keep a physical notebook of some kind with you. That’s faster than any digital method for just cap…
I currently keep a paper notebook for the reason you give.