I have the S20 ultra with One U.I 2.1 the Home Up app, inside of Good Lock will not allow me to use this particular app. Keep saying it's not compatible with the One U.I but my Note 10+ is working prefect with the same One U.I do anybody else have this problem and just maybe have any suggestions on fixing this problem.
That is working just fine on my S20 Ultra.
I would try clearing the cache of the "Good Lock" and "Home Up" apps.
If that doesn't work, I would try uninstalling and then reinstalling both apps.
If that doesn't work, would try clearing the device cache partition.