Mint media centre

Hello world! I am seriously new to the world of linux (fleeing from windows after all the shit they are doing now), so please forgive my ignorance.

I have an old ThinkPad with Mint on it - installing it was about as far as I could get without training wheels. I'd like to use it as a media station with TV as a main screen. Where should I go to do so?

I need to operate it with an airmouse or wireless keyboard if i really have to, and my wife should be able to as well.

Some further requirements:

• it should support a few subs we have, like Amazon, Netflix, Disney+ and maybe more in the future (I'd rather have less, but the family WANTS IT ALL!!!);

• ideally it should switch on with that airmouse and load directly into that media shell without OS being visible.

• the next step would be to have it access media on my old NAS and show it as a separate source. I think this should be easy enough, if the above works.

Ok, now shout at me with all your wisdom and tell me this is the wrong community to ask and I should google it all! ;)