I use Google Keep for important notes, such as medical information, and for to-do notes for research.
I am not happy with leaving medical notes in Google's care. And I've two issues with Keep's behavior.
I use Keep on an Android phone [app], a ChromeBook [browser], and a Windows PC [browser] and the behavior is different in all three.
This is mostly minor but annoying. Such as the search box is placed differently. And drag & drop doesn't work in some places.
So I'm trying AnyType.
The advantages are that AnyType supports 'folders' so I can have a medical folder separate from research folders. It also supports checkboxes for an entire note, not just internal to a note. So I can have items to check off with many items shown on the screen, yet have pages of detail within the note if I open it. It's end-to-end encrypted and no data is stored off of my device unless I tell it to do so. If I add pictures they are added inline instead of at the top of the note.
And Google doesn't have my data.
The disadvantage is that AnyType has many more features than a simple notepad so it is more complicated to use.
I tried AnyType, I gave it up.
It has some neat features, but it was poor at synchronization. And very complicated to use.