Similar to ArthurS since the latest updates my system has been better, but still having slight outages every now and then. The 2021.12.x update coincided with a HASS.io update to version 7.0 and this may have helped some.
However I am still concerned at the memory creep my VM is doing. If you look at my post 14 days ago as you will see the VM memory usage dropped to below two (2) GB on stopping and starting the VM. Since then I have had to restart the VM a couple of times as per this issue, and the memory is starting to creep up again:
Looking at the memory sensor on the system itself it is rarely gotten above 10% before I have had to restart the VM as it became unresponsive: