Is it unfair if they're both scummy companies with infinitely deep pockets? Micro$oft just doesn't pay
as much as Google does to make Google the default search, but knowing M$, they'd happily do the same shit if it made sense for them.
If DDG or Kagi were the ones complaining here, then that makes sense because indeed their pockets don't run as deep as Google's or M$'s and that's unfair, but M$ complaining just sounds like the one comically evil megacorp taking advantage of the situation to get the other comically evil megacorp in trouble for shit they're doing themselves on a smaller scale.