If you're looking to sync your folders and files to a cloud storage account, you'll find plenty of options in Linux.
Joplin is a powerful open-source note-taking and to-do application available on Android (as well as Windows, macOS, Linux, and iOS). It uses Markdown for notes and supports attachments, tags, ...
Using Git for note-taking isn't about learning all of its advanced features. It's understanding that commits create a snapshot of your notes, freezing them in time and making your thought process and ...