Considering that in Mac you have universal app (so in theory your iOS app can easily become a Mac app), but they don't want, even they opt-out from the universa

Considering that in Mac you have universal app (so in theory your iOS app can easily become a Mac app), but they don't want, even they opt-out from the universal app program so you can't install the mobile app in the desktop. But they didn't migrate because isn't critical for their business, Teams is just a bonus, but Outlook is 100% native app in Mac and works great, because they can't afford to lose customers with an electron version of Outlook.