Get this from developer.tibber.com -- log in, then copy the token shown there.
Normally detected automatically from your Deye station (or your IP if Deye isn't set up). Fill this in only if that's showing the wrong place -- it always wins over auto-detection.
Untick anything you don't want cluttering the screen, and use the arrows to put things in your preferred order -- both take effect immediately, no need to re-enter any login.
Nothing here is sent anywhere except directly to Growatt/Deye/Tibber's own servers to fetch your data. Any login field can be left blank if you don't have that system -- its section just won't show.