Yes. Checkout git-annex assistant if you want folder icons and GUIs and such.
A couple days ago I contributed https://github.com/DanielDent/git-annex-remote-rclone to git-annex, so in theory you could use Dropbox as a backend for git-annex if you wanted to (I haven't personally tried it with Dropbox).
A couple days ago I contributed https://github.com/DanielDent/git-annex-remote-rclone to git-annex, so in theory you could use Dropbox as a backend for git-annex if you wanted to (I haven't personally tried it with Dropbox).