I find the Denote Emacs package to be just about perfect for keeping notes.

I have had the reMarkable2 tablet on two occasions. Bought one. Sold it. Bought another one. The hardware is great. The writing experience is great. It should be great. And yet, I never use it. A writing tablet isn't paper, as much as it tries to be. If I'm going to write by hand, why not just use paper?