If your company forced you to use mobile authentication, they should also be providing you with a device on the company plan at no cost to the employee.
In which case you should absolutely use MS Auth and give them all your delicious work data because nothing personal should be on the device anyway.
Did you guys know most rental properties are made of wood?
Unrelated but apparently worker termite colonies will molt into reproductive adults in the absence of a queen and many hobby sources supply worker termites to most US states! It can be a fun and fulfilling hobby for those of all walks of life.