I'm trying to get activity name for current focused app on the device by running this command:
adb shell "dumpsys window windows | grep -E 'mCurrentFocusApp|mFocusedApp'"
It works on older phone with Android 6.0 but on Pixel XL running Android 10 its returns nothing.
If I run only dumpsys window windows
it returns bunch of unfiltered info which is not very efficient for me.