https://www.overleaf.com/ is the result of the merger of two startups, Overleaf proper and ShareLaTeX, and is a Web-based, zero-install way of using LaTeX.
It is the gold standard for collaborative scientific publishing with distributed teams, which has become the norm in the sciences and engineering, if not yet in the humanities (where emailing *.doc file drafts around has not yet died the death the bad habit deserves).
Personally, I find the Overleaf web editor to be worse than a local editor (even with Vim keybindings, dark theme, etc.)
But if your organization pays for Overleaf, you can sync Overleaf projects to local Git repos - and just pull / push as you would any other Git repo.
This is the best of both worlds IMO, since collaborators that don’t know Git can use the web editor without prior knowledge, while collaborators with strong opinions about editors usually know Git (or are willing to learn it).
There is also a Dropbox sync option, but I don’t recommend it. I’ve experienced bugs several times where TeX files suddenly become empty when using it.
It is the gold standard for collaborative scientific publishing with distributed teams, which has become the norm in the sciences and engineering, if not yet in the humanities (where emailing *.doc file drafts around has not yet died the death the bad habit deserves).