Apple allows Candy Crush, Clash of Clans, and all manner of other games using addictive psychological tactics onto the App Store.

If you're more concerned about "gamer-centric" titles, there's also Fortnite and F2P versions of Call of Duty.

How is not allowing streaming Xbox games limiting screen time?

The need to filter out content seems orthogonal to Apple not allowing certain content in the first place.

Google's Family Link allows very granular control over what your kids do with their devices. The the extend that you get a notification if you want for every app they try to install and won't get installed unless you permit it. You can set time limits not just for screen time but on on a per app basis as well.

I don't know how this works but from my experience I found that Google's got this one right.

Your kids could now use my linux machine and they wouldn't be able to install or do any harm at all.

Apple's restrictions don't matter at all here.

i'm really having trouble understanding how giving the choice to the people that want to to install a different app store is going to change anything to your situation...

I'm not for removing apple's store...