Would you be able to teleport to the other side of a window that you can see through with this? Or would this fall under the restrictions of A Clear Path to a Target? (Despite seeing the desired location, you can't teleport there because the location is under Total Cover.)

I don't know the answer to that question but I did use it to teleport into a room while looking through a keyhole. Might be up to your DM and how your party likes to play.