yes it's very frustrated using connect wireless display in windows and i didn't know what the problems and incompability with my android tv like sony. but there is a easy way to connect wireless your laptop to android tv.
first add your tv device at bluetooth and other device setting then select wireless display or dock. if nothing happen then select everything else. wait until your tv's name appears and finish. after that open your chrome browser or edge then select triple vertical dot to click cast.. at the cast tab select your tv and change source to the desktop and voila! laptop screen mirroring appears at tv but you can't projecting your screen like lcd projector. thats it