Please note that some tickets from the links above might be assigned to OC 9.0.3 or lower versions. Most of them are intended to be fixed on master for 9.1 and then backported, so they are relevant not only for 9.1 but also for the maintenance releases.
The numbers are still a bit high at the moment. We'll triage them further once we approach 9.1.0 RC1 which is on June 22th (in two weeks). After the RC1 we will enter the code freeze phase and only fixes for sev1-critical issues or showstoppers will be accepted.