Bing is the default on all Windows devices and Edge, and yet they are complaining about not getting default on Android and Apple devices?

> and that this smaller scale translated into poorer quality search.

Isn't the scale offered by Windows/Edge not enough? Other search engines like DDG, Kagi are improving their quality even with their even smaller scale.

> Tinter testified that Bing was not the default installed in any Android or Apple smartphone sold in the U.S. in the past decade, even though Microsoft would at times offer to give more than 100% of revenue -- or more -- to its partner.

If nobody is willing to take on your offer, it may be that your quality is not good enough?