No that will not work, users already opened an issue and asked to remove the spyware and Mozilla closed it:
https://github.com/thunderbird/thunderbird-android/issues/8199
Mozilla has gone full evil already, they took the only full featured, completely privacy respecting email app on the platform and killed it and they did it sneakily as well just like they did with PPA on firefox.
Luckily K9 in its existing version is fully functional. Users who care about privacy can continue to use K9.
Yes that is what we are left with.
Mozilla bought k9 and killed it, sad day for users.