Hi there.
I am running Cinnamon 5.6.8 on Bookworm.
I recently upgraded to Bookworm and am experiencing what I believe to be a regression related to VirtualBox and the Grouped window list in the panel ... Before the upgrade I was running Bullseye, which has Cinnamon 4.8.6.
In Cinnamon 4.8.6 (and even the 3.x version before the grouped window list was included), I was able to create a shortcut to a virtual machine (using VirtualBox) that I would then pin to the panel. I can pin them to the panel in the new Cinnamon as well, but unlike with older versions, upon launching, this newer Cinnamon creates a new panel icon. It does not threat the pinned icon as an application, rather it treats it as a shortcut. Instead of being able to use the existing icon to minimize, activate and reactivate a running VM, similar to how the grouped window list acts with any regular app, I now have to interact with the new icon that is created upon launching the VM. I hope this makes sense?
I am pretty sure I have narrowed this down to Cinnamon itself. I have verified that this issue persists on a fresh install, so it is not related to leftover cruft and whatnot from the upgrade, and the version of Virtualbox is the same before and after the upgrade.
EDIT: Debian 11 is "BULLSEYE" ... not "Buster" ... I wish they didn't have three "Bs" in a row!
EDIT: I attached a bug report if it helps:
https://github.com/linuxmint/cinnamon/issues/12066
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