Many rules or "One to rule them all" | should I play with floating ?

[NinthWave]

I have read this "floating-rules page" but don't want to mess.

I have a kid at home that need some firewall rules in order to get to sleep and don't get late to school on the next day.

The PC in controlled through Windows Family

We have a TV Box in the living room and the kid has an iPhone and an IPad.

There is an alias for the kid, lets call it: AlexDevices

Old structure
Network: I had only one interface LAN and all devices were connected to it
Rules: I had a "week" rule, a "weekend" rule and an "no school" rule for week days without school

New structure
I segmented my network in different VLANs. Now, the iOS devices are under a Wifi VLAN while the TVBox is under IOT VLAN (ethernet cabled).

I guess I would have to put 3 rules in Wifi Interface and 3 rules in IOT interface.

So I was thinking of a shorter way to do that.

Would it be possible to make 3 floating rules and how ?

Because reading through the floating rules docs, I am not sure if it's a good idea not how to do it.