If VirtualBox stuck on Saving state, your machine is in the hung state. Kill the VM via the Command Prompt, disable Core Isolation/Memory Integrity, etc.
Following the recent release of VirtualBox 7.2, which introduced plenty of new features and improvements, Oracle released VirtualBox 7.2.2. The update is qualified as a "maintenance release," which ...
In current developer builds of VirtualBox, KVM support appears for the first time. The function is experimental and only available through manual source builds.