Using Outlook for Android in business environments for email and scheduling
are you sure?
nobody else's is
how do you know?
swipe to the bottom of the page and if you get 3 dots in the middle
press them and see if "open in browser" is one of the options
if so, you are opening it in the ms outlook browser
It is only really noticeable because passwords and form filling will be remembered separately than the ones in your normal browser