oh I already know about the transparency glitches. I figured out a solution on day one.
just disable the in-app transparency settings for now until the dev finds a fix for the incompatibility.
it works better after that. for the record, its the only problem on my machine.
windowblinds however died outright after 20h2. hasnt worked since.
Even then it will not be actually applying any titlebar images or shadows. Only custom titlebar buttons will apply on anything other than UWP apps.
I believe explorer background transparency is also broken.
The taskbar will not skin unless you are using Start11 as well as it will be piggybacking on Start11's support of Win11, but alone it wouldn't handle the taskbar.
As I have said, it does not work correctly on Windows 11 hence we will no longer allow installs on that OS to avoid customer confusion.
WindowBlinds 10 works correctly on 21h1 and 21h2 Windows 10. It does not support Windows 11 however. If you had problems on 21h1 it sounds like you were not running the latest version of WB.