Comment 4 for bug 1988473

I can confirm this with a Kubuntu Guest on a Kubuntu Host (both 22.04.1)

Firefox will crash on average every 30 seconds, no matter what website you are on, the more you interact with it the faster it will crash.

Chromium will also crash occasionally, but far less often than Firefox.

Some other apps have also crashed occasionally in the last 2 days and even the entire plasma shell in the guest has crashed a few times, black screen or frozen and once it was not even possible to shut down the guest with ACPI event anymore.

Downgrading to the previous -46 kernel made all these problems disappear.