The reason that most companies don’t want you to do that is because they don’t want people running around installing their own OS and doing whatever they feel like on company devices.
Letting people do that would be an IT and information security nightmare.
It’s the same reason that no (sane) company would give local admin privileges to everyone.
The reason why companies generally don’t have an official way to use Linux is because it’s hard to support two platforms simultaneously. Especially when you have, certificate and/or AD network authentication for wireless and wired like we do. You also need to consider how the two platforms should interact with each other. For example Linux devices should be able to connect to the AD domain with Kerberos and need to be able to access SMB shares and probably other systems.
In short it’s more complicated than “just let me try”.
Isn’t Lemmy decreasing in numbers?