Here's one thing Apple did well on. Their screentime settings also work in the browser. It could be better, but at least it's something if you set up your kids device properly.
I had a teen whose main device was an iPad 4ish years ago and now a tween whose main device is a Windows laptop. I like Windows' implementation better--it's more granular when it comes to site access on Edge, and allows time limits in specific programs rather than categories of apps. I remember some apps that were clearly games had themselves listed as education apps.