Fastest Path
Use authenticated deletion inside the app when possible.
In the Taby app, open Profile, then Privacy & Data, then Delete Account. Authenticated deletion removes owned account data, relationship-linked rows, export artifacts, and the authenticated account, then clears device-bound state on the requesting device.
If you submit the web form instead, Taby will verify account ownership before processing the request. Active Google Play subscriptions should also be cancelled in Google Play because store billing is managed by Google.