VM Gets Terminated/Freezes in OS16 Consuming Less RAM Than in OS15

**Describe the issue**
VM gets terminated/freezes in ipados16 consuming less RAM than in ipados15.

Specifically:
*Case 1*
When I allocate more than 4gb of ram, the VM got terminated by ipados16 directly when using over 4gb.
*Case 2*
When I allocate less than 4gb of RAM (3840mb, for example), the VM freezes and stops responding to any inputs when allocated RAM is fully used.

These happened probably due to use of GPU acceleration. But freezing is yet another isuue (case 2)

**Configuration (required)**
* UTM Version: 4.4.5-HV
* OS Version: 16.3.1
* Device Model: 11in 3rd Gen M1 SoC (256G 8G of RAM)
* Is it jailbroken (name jailbreak used)? TS2-Misaka
* How did you install UTM? TS2-Misaka
* VM: Ubuntu 20.04 LTS Arm64
* GPU Acceleration: Enabled (Angle-Metal)

**Crash log**
Not found, the app just flashes off and the view returns to main menu. There's no matching crashlog in the required section.

**Debug log**

[debug.log](https://github.com/utmapp/UTM/files/13892975/debug.log)