Microsoft clearly uses dark patterns and FUD to lure you into using Bing.
As long as they're using legal loopholes (or downright do not care because they have enough money to pay any fines) you cannot do anything against it except not using their OS.
Oh God, that was so annoying! Once I realized which app had added that, I uninstalled it with alacrity. I have to use Outlook for my job, but that doesn't mean I'll use the mobile version ever again. And the web-based one actually works fine on mobile devices.
Yeah absolute pisstake. I've moved to Proton Mail and forward any left to transfer emails and use the outlook lite app to manage it, it's actually not that bad.
Ironic, because I used to use Bing (over Google) and all this kind of bullshit - especially aggressively pushing their chat bot - pushed me away (to DDG).
I mean, it depends on your design of the fines. If you ask for a days revenue per day of violation, this stuff will never happen again (since this is no mistake, it is totally fair price). A month of this and their yearly profit is in the government hand.