ScreenTime on macOS should track only apps which have focus and/or are in foreground

ScreenTime tracks time for all open apps on iOS. Which is a wierd behaviour rendering the app pretty much useless.

Let's say that I have a 30 minutes daily limit for Safari. In the morning I start working, cleaning up my mail. Before I am finished I get a notification that I run out of time just because I had a Safari window open somewhere in background from yestarday.

Moreover the same issue affects the tracked times. Apparently, according to ScreenTime, yesterday I spent 11h in several different applications & dozen of webpages at once. Those numbers are pretty much meaningless, rendering the reporting useless.

On iOS this works just fine. Is anyone here actually using this on macOS?