It can be made to work , Win 11 can Run WB10, but that is a whole other thread.
It can, but it also looks like Windowblinds 11 is going to make changes to how it works. Just for the fun of it, I tested Windowblinds 10 with the Start 11 taskbar. I wouldn't recommend doing this by the way. What I found is that Windowblinds 10 doesn't fully hook in all the taskbar elements. The only thing that is carried over is the texture, all the tab skins are not present. On top of that explorer crashes in an infinite loop.
What this tells me is that we can expect a bit of an overhaul with how Windowblinds 11 handles the taskbar. I suspect the overall look will be a more native taskbar to Windows 11 which should differ from the Windows 10 style we are used to seeing with any sort of Windows 11 skinning that is currently available.
I do wounder what this means for backwards compatibility with skins that are currently available. In example does this mean skinners will have to touch up their taskbar on all their skins or will there be something in Windowblinds 11 that allows parts of a skin to be translated into the Windows 11 taskbar automatically.
Just something to pounder as we wait.