IT Guy here - we have been ordered by management to operate a computer system to setup and maintain a usable and secure computer environment for the work the management needs to be done.
To do this, your IT team and selected Windows 11 as the plattform, this is due go several factors.
- Compabillity - Windows is the de-facto standard, if you want to do buisniss with other companies, Windows is a safe bet.
- Familiarity - Windows is the de-facto standard, people know how to use it with little training.
- Managabillity - Windows has excellent tools for central management, so IT policies can easily be implmented centrally.
With your Linux VM you will introduce new security holes, remove central management and throw familiarity out the window.
In any sane company, and unauthorized VM would at minimum be grounds for immediate termination.
If you want to do a proof of concept for your idea, you need management buy in, speak with the CTO and ask about migrating your proccesses to Linux ant do it above board.