You absolute can become a professional computer toucher without having to engage with Windows. If you look at operating systems for cloud servers you will see that 90% of them are running on some Linux variant.
If you want to use your experience to work with linux desktop machines then that might be tricky. You will have to find a company that mandates to use linux machines. I think your best chances might be a tech startup that has not yet fallen into the windows trap.
It won't because its exterior has too many sharp edges to be street legal. It will never be allowed in europe, not without a whole bunch of laws beeing changed.
I am using Voyager to browse lemmy, and the alt text at the bottom is transforming this into a meta joke: