I take a lot of notes, switching platforms occasionally. In the past I used Evernote, Google Keep, Emacs with org mode, and then Apple notes. I tend to toss out old notes periodically. A few months ago I copied current notes back to Google Keep and that is what I am using now.

I write a lot (20 books, 1300 blog articles) and I just need to write notes with new ideas, links to resources, etc.

My oldest notes are probably a few years old. Deleting old stuff is easy and feels tidy.