I'll pitch in this:

I'm taken hostage by Chrome because the two organizations I work for (post-secondary and government) have this massive contract with Google for G Suite. So our email, productivity tools (word processing, spreadsheet), and whatever else is all Google, all the time.

Using another browser to access Gmail, Docs, Google Drive means that there's this ugly banner at the top that will read something like:

"USE GOOGLE CHROME TODAY. YOUR EXPERIENCE IS DIMINISHED BY USING EDGE [or Firefox]"

And they're right. The tools we rely on every day are unfortunately optimized for Chrome, without support for other browsers. Attempting to edit a document in (Spartan) Microsoft Edge or the iPad Pro Safari browser will have weird artifacts, end up with bad formatting, and might not support keyboard shortcuts. Gmail and YouTube are just plain slow in the old MS Edge. It's just hard to live a non-Chrome life when you have to deal with G Suite every day.

I'm sure the same can be said for the Office 365 app family and how inter-operability is low, but at least Microsoft tries to make their stuff work across multiple platforms and devices.......