After all in terms of time management what matters most is not how much you use an app on a single day but how much you use it in a week.
Especially as daily usage can fluctuate quite a bit.
An incredibly useful user story would be to be able to set a weekly limit of lets say 3h for entertainment such that you can watch a movie on Saturday but then block netflix and youtube for the rest of the week.
If you decide to watch 25min of youtube videos every day that is also fine but that way you still only loose 3h per week.
Right now I can set a limit for youtube limiting me to 25min and therefore achieving the sub 3h mark. But it doesn’t allow for watching a documentary or necessary tutorial for example.
I will then end up having to delete the limit, which defeats the purpose of creating it.