As much as I love Google (not even a little, my love for that company is negative and becoming more negative per second) I would love to run far far away from it. Here’s another ball and chain I need to break.
Where can I find a simple parental control access system for my phone and or computer that I allow my kids to use?
Not a perfect solution, but I use NextDNS which has profiles, and can set allowed services and times of day for them, Online Games, Video Streaming etc. This is set in the phone’s DNS setting so works via WiFi or cellular.
I’ve started to use the excellent DNS Toggle on my phone to quickly enable/disable it for the really annoying sites that block ad blockers etc.
In terms of app control itself, I still use Family Link begrudgingly as well like you for Android phones. I access it via the web page which thankfully still works so I don’t have to have the Google app installed.