What makes Linux not an option? Is there specific apps you need to use? Or IT policies? Or something else?

The company I work for got bought by a big conglomerate, and I managed to stubbornly hold out using Linux for a really long time. It turns out if your workplace has adopted “Bring your own device” type policies, that often means you can auth with enough services that working on Linux is feasible.

It's much harder for non-dev jobs where the management won't let you BYOD for whatever reasons, which could range from IT being too stubborn to allow you to keep company data on your own laptop that's not centrally managed, to everything including licenses for random 3rd party software the company is using being tied to the ActiveDirectory fleet of computers with centralized storage.

This is the reality of IT equipment in big parts of the non-dev world, and you'll have a hard time convincing the IT dept to take on extra hassle just for you to use Linux out of all hundreds of employees who're just fine with Windows.