I have a question regarding this: do these systems help in the context of programming/software development/computer science? Does note taking help you to understand, remember and learn things?
I am quite struggling if I should take on such a system myself and what the benefits and disadvantages are.
Ultimately, it doesn't matter that notetaking helps me. You need to see if it helps you, and you have to try it to do that. But it's one of those things where it isn't all or nothing. Start small and if it helps do more.
But obviously, digital storage is much better for data persistence and sharing. I personally think maintaining a Zettelkasten-like system by hand is too much of a barrier. Try looking at apps like Bear or Notable for your needs.