This was the answer from TP-link as you can see it was last edited in august 2020. I hope they realize that this feauter is no some candy that some of us would like to have but something that a lot...

Hi everyone! I recently bought Deco M5 and I would also join others with request for wifi schedule. I like to have my wifi disabled at night. For now I just unpluge it every night and, then plug it...