You totally right. I use the combo also (Family link to block/limit mobile utilization and now tracking and Family safety for both desktop/mobile, web filtering and the tracking)
But one of the issues I face in google one is that we can´t see location of devices of the grown up (+18), so unless my younger kid have his phone with him, my wife can´t see where we are.
by the way, I asked for refunding on microsoft for the period that its not working and they refunded me, but canceled my premium signature (duuumb me), so I had to signup for the premium again..
Maybe its time to find some other tool to replace microsoft on and track the family?