Microsofts new Terms and Service agreement is rather questionable. In short; It does not clarify if Microsoft will use your data to train it's AI.
So Mozilla is calling for arms to sign their petition for Microsoft to give a proper answer! You can sign it here ->
https://foundation.mozilla.org/en/campaigns/microsoft-ai/
Mozillas Context;
Ask Microsoft: Are you using our personal data to train AI?
We had four lawyers, three privacy experts, and two campaigners look at Microsoft's new Service Agreement, and none of our experts could tell if Microsoft plans on using your personal data – including audio, video, chat, and attachments from 130 products, including Office, Skype, Teams, and Xbox – to train its AI models.
If nine experts in privacy can't understand what Microsoft does with your data, what chance does the average person have? That's why we're asking Microsoft to say if they're going to use our personal data to train its AI.
If you want to get emerged into the linux world and get broad understanding then I recommend watching videos on youtube by DistroTube. Adjacent, kinda more advanced channels are Luke Smith and Brodie Robertson.
If you just want to use linux and be done with that topic, you can use linux mint. What you have to know is that you get all software from the software center, not from websites. The rest should be very familiar.