There are couple of reports showing issues with macOS 12.2 Monterey, iOS 15.3 and watchOS 8.4.
Users report that macOS 12.2 sometimes might result in battery drain during sleep when Bluetooth connection is on.
And watchOS 8.4 with iOS 15.3 update might result in sync issues with Wallet. Some cards and passes added or removed on iPhone are not synced to Watch automatically.
Also, some reports show issues with current beta versions too. Apple warns macOS Catalina and Big Sur users with FileVault volume with possible issues trying to boot into macOS 12.3. Release notes for the beta now includes the warning.
Warning
If your Mac currently has macOS Catalina installed, installing macOS Monterey 12.3 beta or macOS Big Sur 11.6.4 beta on a volume with FileVault enabled might cause a boot loop when attempting to log back into the previous volume. (88163545)
Apple Support: Installing macOS on a separate APFS volume
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