@Dirk_OWL @thomas_mathoi (I'll stick to English as others might be interested as well.)
How many time do you have?
First, it doesn't matter what I'm using. It only depends on your requirements: https://karl-voit.at/2021/01/18/tool-choices/
Then, #Markdown is too fragmented to be a sane long-term choice (data loss, migration effort). It's complicated. I'll blog about that in the upcoming weeks. Follow my blog feed for this update.
Furthermore, #Obsidian is closed source. So it can be gone any moment. It easily introduces further proprietary MD extensions as well. I´d not invest time/effort in such a hyped thing. It'll be history like so many other hyped services of the past.
For more content, help yourself at https://karl-voit.at/tags/pim/
I do have a lecture about #PIM at #TUGraz if you're interested: https://www.karl-voit.at/pim-lecture-tug/
HTH
