My/our setup for papers is: Latex installation on laptop, (home, work, conferences) + private Github repo + Zotero (with notes and highlighting directly in the PDFs) + notes.md for thoughts/ideas etc.

Team members all have local Latex installs as they have CS/math backgrounds.

Works well, easy to onboard new colleagues. Probably harder if there were people with other backgrounds (MBA), however an industrial designer on the team also uses GitHub for basic pull/commit.

For my fiction writing, I also use local Latex install+GitHub.