Microsoft is buying up companies to stockpile IP. Simple as that.
Then they have a lot of redundant workers so they let them go, leaving the IP in their hands to be filed away for potential lawsuits against infringers.
Is it still EEE when they're shooting themselves in the foot all the time? Xbox 360 had a good run but then during the cycle they dropped the ball and even got overtaken by PS3 late. One and Series S/X don't matter that much.