Having your router limit internet connectivity time is effectively the same thing these days. There are some things they can do offline but not much anymore.

Personally, I’d use the router to limit access to locations and times. It’s more reliable, easier to do, and lets you be less picky with your distro.

Using a DNS level content blocker like Adblock DNS is a great option, IMHO, and is super easy to setup.

(For the record, parent of 8 and 11 yr olds)

Defragging works for that.

I shrunk my Win10 partition from within Windows to make space to dual boot into linux so you definitely can shrink an active partition.

You know with Android, you can just sideload any app you want. Still not sure why anyone buys Apple products, but hey at least you get different colored chat bubbles!