notepad++ for the way it handles files. its a great swiss knife tool to write something quick down and have the autosave handle it without having to worry about archiving stuff.
i'm looking into using vscode notebook for the way they handle code and markdown sections. seems like the goto tool for my needs to write a lot of code snippets. code highlighting support would be much welcomed.
joplin's cross device and platform features are still irreplaceable for me.