This is a pretty solid overview of a literature review workflow. He doesn't use the words, but this is not a half bad way to build a digital commonplace book or digital garden/personal wiki for research use.

I hadn't thought about using Grav as the method for storing and displaying all of it, but perhaps it's worth looking into?

An interesting outline of how Colin Madland uses Notion for his Ph.D. research work.

He's got a good list of some pros and cons at the bottom. The export sounds a bit hairy on one front, but at least gives you some sort of back up in case the worst were to happen.

Not sure it's the thing for me and I'm happier with my workflow using Obsidian at the moment, though some of the ideas about process here could be helpful.

It looks like he's got some of the same issues in using Grav for his knowledge work as I do in WordPress, though the taxonomy and Webmention portions do tend to help me a bit.

Colin brought this to my attention at the OERxDomains21 conference.