There's a entire book out there about this particular subject called "Building a Second Brain", written by Tiago Forte.
https://www.buildingasecondbrain.com/
I've read it and it's pretty good. Maybe you should give it a try as well.
At the end of the day some of this information is most likely lodged in your brain and the digital version can be discarded. However some of it should be retained manually in some system - or at least I feel it should.
What approaches do people use to consolidate and store this information to allow all tabs etc to be closed for the next work day?
https://www.buildingasecondbrain.com/
I've read it and it's pretty good. Maybe you should give it a try as well.