Let me send you the steps on how to check here: Make sure your desktop app is open, then click the little Dropbox icon in your taskbar. (The row of icons at the top or bottom of your screen).
If you don’t see it in that row of icons, click the arrow, to see if it’s in the overflow area. Click your avatar (profile picture or initials) in the top-right corner. Click Preferences, then go under the the Sync tab.
You should be able to see the path of your folder there.