Sorry to hear you are having issues. It is know some browser has issue with Windowblinds because they have their own skinning engine. But there is some workaround that need to be applied.
1. Firefox just work for me, need to do the : 3 bar menu -> customize ->tick the titlebar box bottom left.
2. Chrome base browser such as Edge, you might try the solution for Chrome as mentioned on the WB advanced setting above.
Stardock Community Assistant.