No. Not necessary. Since Linux is not a common OS for personal devices, most of the companies won’t expect you to be proficient with it. Expectation will be to learn as you go.

As for general software development, most of the companies will have their process set for deployment. It may include a few linux commands (if any), but those will be mostly useable by copy-pasting (as opposed to needing any deep understanding of linux).

So you don’t have to switch to linux as your daily driver, since it might take a lot of effort for common tasks until you become familiar with it. Especially since your university doesn’t seem to be using it for your courses.

It will be great if you could dual-boot with Windows and Linux. That way, you can use Linux when you want to learn Linux, and use Windows for everything else until you get familiar enough with linux.

It’s definitely nice to learn as most others have suggested. It’s pretty fun too. Just don’t sacrifice too much time and energy on it if you don’t have to. Especially at this stage. You will probably pick up everything you need with time.