I have a tendency to jump between different note-taking services. Markdown seems like it could maybe be a cure for me.. By now i have no idea where I should look for a note I know I’ve taken, is it in notion, onenote, apple notes, and so on..
I've tried a few different note taking apps but I'm sticking with obsidian even though it is not open source because it saves everything in a simple folder structure as markdown files and simple images. I like that even without the program you can just search for the names of the images or notes on your system.
I use Obsidian with Zettel Notes on my phone to access and edit the MD files in Obsidian, as it is much faster for dashing off a quick note. ZN also has tools that allow you to save a web page or selection as MD which is very handy indeed.