Just finished my Master's this year.

I belonged to the Department of Computer Science at a university in the UK so granted there's a lot of bias here:

I will point out a few observations, without going into much detail or reasoning:

1. Microsoft's Office suite was a non-requirement. For collaboration, everyone was using Google's Office suite (Google Docs, Sheets) or Overleaf (Premium if we signed up with our university email).
2. Around half (maybe more) were MacOS users, maybe 25-25% split between Linux and Windows.
3. Lots of iPads, particularly in any Maths classes.

Anything else to keep in mind? Yes, that people are ignorant. Even in our CS department people used to actively avoid using Linux, a lot of people will buy Macbooks because of reasons I would attribute more to the demographics of CS students, i.e. primarily from Asian countries where Apple is seen as a economic symbol.

Be prepared for people to judge you (not saying they should, but that they likely will). If you want to avoid this judgement, get an Apple silicon Macbook Air or something. However, I commend you for going out of your way to learn and wanting to reduce your dependency on Windows. I think that learning to be comfortable with the machine will help you in the future, most likely indirectly.

Lastly, keep in mind that when we have discussions about privacy or Linux or not supporting big tech companies who we might not agree with (e.g. Microsoft, Google, Apple etc) it's never a binary problem. You might find that you will end up relying on teams for internal communication or that your university email is with outlook/office365.

Try and do your bit, but don't be too harsh on yourself. :)

Needless to say, if you're looking for a laptop that runs Linux well plenty of people will tell you to buy a used thinkpad (great from a value perspective), or if you'd prefer some of the new kidz stuff then a Tuxedo notebook.

Do not make the mistake of buying a notebook which doesn't have a reputation of good Linux support. I bought a HP notebook (can't quite remember the model number right now but can get back to you) and still no sound without manual kernel module patch :D