I am very meticulous with information. Anything paper gets scanned and filed digitally. I have over 10,000 PDFs and I can find just about anything within 30 seconds.
For websites, I have a system to store links I can view online/offline from all my devices, if it is something I want to store permanently it gets put into my bookmarks and filed in appropriate category.
As for everything else, I extensive Markdown style notes categorized and tagged for easy review/discovery. If it is a process I care about, I will likely have a note on it stored and easily accessible.
Are you using an app for the markdown notes?
https://obsidian.md/
Oh neat, I have heard of that (on YouTube heh)
I love it, great program, I just wish it had better options for sync without paying monthly or using a third party plugin that isn't fully polished.