Stable for your phone. Generally samsung had a history of pushing updates which are not properly optimised for low end devices. Same happened with my friends M31s. So u till samsung work upon those upgrades and make it optimised for low end phones. T...
My recommendation is backup up and revert to previous update. Your phone is good on Android 11 One UI 3.0. After few months upgrade your phone to Android 12 when the upgrade is stable
M series are entry level from samsung generally overlooked in terms of performance and stability. So instead of upgrading to a new build quickly you should wait till further stable updates.
