Had my S21 Ultra for a year since preorder and haven't had that many hiccups.
1. Initially most people who had issues were the once who had done a smartswitch transfer.
I have the habit of starting a new phone from fresh and only getting my photos and contacts from the cloud.
2. Android 12 has been buggy on both Samsung and Pixel phones.
I find that after every Android 12 update its best to do a Wipe Cache and repair apps in same menu.
3. Lastly keep checking for app updates in both Samsung and Google store.
Happy days.
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