I wonder if Apple would consider adding this to the Screen time feature? Otherwise I don't see how you can apply it on the iPhone for just certain websites or certain times of day.
They probably wouldn’t because it’s too specific. I’m in Germany and figured I’d just connect to one of the currently most used VPN Servers in New Zealand. Makes my connection slow when I can’t procrastinate or want to reduce screen time without actually blocking apps by enabling iOS Screen Time.