Hey @AndreasEbner welcome to the club! 
My strategy has changed since I wrote my previous comments.
I was so deep into the rabbit holes of Zettelkasten, Obsidian (mostly its plugins) and the Second Brain myth that I was blind to maybe the only truth: I’m a knowledge worker, but knowledge is not my end goal. My very end goal is making something with this knowledge: an article, a video, a podcast…
So a reflection came to my mind: do I really need such beautiful, structured, interconnected second brain?
As I started to ask myself such question I realized I was spending more time on connecting notes than on produce something from them.
Eventually I made a test: I moved all my MD files from Obsidian to DT, and uninstalled Obsidian.
After many month I still don’t miss it…
Ok my databases are lesser and lesser similar to a Second Brain, but I produce more content.
So I don’t rely on backlinks anymore: I simply use the link to the item when I need a fast reference to a specific note.
e.g.: I work in the educational field, so I have a repository of educational activities.
When I start a new project and I find an educational activity fits the need, I grab the link to the note and insert it to the note related to the project, so that I can jump fast to the activity.
Nothing more…
Short story: I reduced the frills and see if I was able to live without them.
My next test:
I’m used to highlight a PDF and export a summary of the highlights in a md file.
It’s a Zettelkasten inheritance: I used so that I was able to create atomic notes from those files.
I was so used to them that I had a shortcut for this!
But when I started a new project, a training course about a very narrow topic, I went to DT and looked for information inside my databases.
And I realized I was extracting the information from the PDFs and their highlights inside the PDFs, and never touched the summary files.
So my next test is I don’t extract the summary anymore, and see if I can live with only the PDFs and the highlights inside of them.
Do I miss Obsidian?
Nope.
Sometimes I find myself wishing to have a more structured, beautiful to see knowledge hub, but then I realize this is not my real wish: my real wish here is to have more order in my life.
I’ve discovered the minimal approach is better for me and my life.
Hope it makes sense and helps.