Hey there @Jack887, thanks for checking in with us!
When you install the Dropbox desktop app, it creates a folder containing all your folders and files in your Dropbox account. Unless you selectively sync folders, you'll be able to access synced items locally.
Hi Lusil - The "Set Up Dropbox" sign in page doesn't permit pasting my Mac Keychain password ... nor does it allow pasting my email address (in the appropriate entry field). So no copy-paste is possible when I try to sign in the first time using newly-installed DB App. Again, I'd prefer not to sign in using Google or Apple options. Thanks!