A couple weeks ago I tried Win11 ARM on UTM 3.1.15 and, after installing "spice-guest-tools-0.164.3", I could easily change resolution directly from the Windows regular settings like running on pure hardware. GPU acceleration is also there and the feeling was quite good. Do you believe it would also work if installing Spice Guest on my Win11 fusion VM or do I run the risk of corrupting it all and/or getting into an irreversible situation? I make this question because the found solution below using GRUB is a bit above my current skills and a concern for me as well.
Thanks in advance for your help.
Installing SPICE tools when running under the Tech Preview won’t help you. The virtualized devices for QEMU are built so they can support the SPICE tools. The VMware virtualized devices are not. They are built for VMware Tools. My guess is that if you installed the SPICE tools in a windows for ARM VM they would not find a compatible device to attach to.
Also there is no 3d support yet in the Tech Preview - although that may change according to hints dropped by @Mikero and changes submitted to the Linux kernel.
There’s no way around this until VMware (and Microsoft?) decides to support Windows for ARM on M1. Then we’d see tools for Windows for ARM. This is more about supportabilty and licensing than technical capabilities.
I just did this following @k_ronny 's tutorial to the letter. It boots fine, so I suspect that there's something that you missed performing the procedure.
Can you get into the EFI boot firmware at all by starting the VM using Virtual Machine > Power on to Firmware? If you can, , then
Select the Boot Manager,
then select "Windows Boot Manager" (this should remain after you execute the procedure) and hit Enter.
I'd like to check if you have the grub boot components installed correctly, then we'll move on to the EFI firmware configuration to see if you did that correctly.