Tested this on a M1 MacBook Pro using UTM using default settings.
Installation media boots no problem. After installation, won’t boot from hard drive using EFI (I tried both GUID and Intel partition map). It will boot from the hard drive with legacyBIOS by unchecking EFI Boot in QEMU settings under tweaks.
Once booted into either the hard drive or the installation media the mouse is unresponsive for about 30secs to a minute and then it works no problem. If you select Force PS/2 controller from the QEMU settings the mouse works without issue.
Shutdown and Rebooting:
Selecting Shutdown the system will shutdown without issue using both EFI(installation media) and legacyBIOS(installation media and hard drive) options. Using legacyBIOS it will deadlock on “Asking other processes to quit” when trying to restart, using EFI it can reboot without issue. IMO this problem might be on the UTM side because I’ve had other virtual machines deadlock on restart using legacyBIOS.
Later today I"ll upgrade my Pentium 4 with beta 3 to this version and I’ll let you know if there are any issues that might pop up on that computer.