I have specific updates notes for each project. I add a weekly header (via a template) in reverse chronological order. Pull the key updates into that (I also have a todo for each project that pulls in tasks from all files in that project subfolder - so picks up meeting actions)
I also put them all in a canvas so when I doing updates about projects they’re all in one place.
I do the same for people I manage so I can keep track of updates and todos when I’m meeting with them.
My go to start point is a daily not where I throw in new tasks (tagged to projects or people) and those get pulled into the corresponding project/person file.
Because it’s markdown with lots of plugins it helps me do things like diagrams (mermaid diagrams) etc and excalidraw/canvas for architecting/mind map style ideation.