publicvoit, (edited ) Today, I tested #Joplin because people kept arguing that you keep your #Markdown files as local copies which prevents vendor #lockin.
From what I've seen today, this is not a valid argument. The md files are named with random file names, their content is not just md, it's md + JSON for some meta-data.
From what it seems, without Joplin, you'll lose your structure and your internal and external links. This would be a desaster to migrate to a different tool like #orgmode.