I have started using a personal mediawiki instance with Cargo for semantic data. I realized that I wanted to have full control of my data, so I didn't like the idea of going all-in with Notion or something similar. I'm a heavy user of wikipedia so mediawiki just "feels" natural. Installing it is a huge pain.
I am finding that the system works well enough, once you get VisualEditor working. However the main problem is the habit of capturing my thoughts and work products. It's a tough habit to get in to.
Ultimately I want the wiki to be just one piece of a larger system that automatically organizes all my articles, files, mail, posts, etc. The idea being that I can work with whatever tool is easiest for any particular situation, and still be able to cross-reference all the information in a way that is useful and easy to search. We'll see if I ever get there.