You get an IT staff that is MS and Windows certified, what sort of answer do you expect them to give? As far as IT staff where I worked, they often had issues with resolving Windows problems say nothing about Linux. Generally for Windows, I had to get to level 3 support before they knew anything. Even then I often had to tell them what needed to be done rather then them actually knowing. Some of this is lack of skill, some if it is under staffing, some of it is restrictive processes, and some organizational issues. You had to know how to work the system on one hand, and which issues just to not waste time on. Not saying they did not try hard, but without facilitation their results were often insufficient.
That does not mean you cannot use Linux however. Just means the main IT group does not support. We had a separate group that ran the Linux compute cluster we used. I also typically always had a Linux VM on my workstation too to use FOSS tools. Not sure that would be allowed these days since IT has gotten nuts about security, and with that they have generally grabbed a lot of power regarding what can and cannot be done on “their” hardware and on “their” networks. You can also get exceptions to a lot of those rules if you can justify it and if your management is willing to run it up the flag pole. If not, your working for the wrong people.