I had two apps causing battery drain under the report app issue, uninstalled them, force stopped the bixby processes and cleared data and cache checked all the permissions, restarted and the original problem persists.
Give this a shot.
Go to Settings > Apps > Show system Apps (click on the 3 vertical dots upper right of screen) >
Bixby Voice >Force Stop> Storage > Clear Data and Clear Cache.
I tried that, it gave me the error message about needing permissions, gave it the permissions for calendar and SMS which is all it shows AMD then it gave me the same notification after I pressed the bixby button again
Safe mode gave me the permissions notification but brought bixby language setup screen then bixby home one time, after I left it I just got the notification and no Bixby