new m1 stuck on big sur update

If this "Stuck " is during the installation process - suggest shut down by whatever means required including the Power Button. Disconnect any external devices and connect to charger.

Start up your Mac in safe mode and it will do a Repair Disk, clear cache files and only load Apple Software, extensions and Fonts. So, it will load slowly - normal.

This may or may not allow the update process to complete successfully.

Fingers cross here and yes, do keep us update on hopefully as successful update.

Any updates on this? Experiencing the same thing.

How was the Empty Space before the attempted update. Good Apple practices ais to always keep 15% of the drive as Empty Space for the OS to function properly.