I just switched from Windows to Linux recently. Have gone from Zorin to Linux Mint and my friend likes Ubuntu. I would like to think that I watched a lot of videos and read a lot of articles before switching, but I've never heard of immutable distros. Could you please explain that term?
Edit: Grammar.
Don't go with Intel. Anyone recommending intel should be ashamed and should have kept up with the tech news about Intel's CPUs basically burning up and Intel ignoring the issue, including all the warranty claims. NO INTEL. AMD Cpu and Gpu, because AMD develops more for Linux than Nvidia does. But you could still go for Nvidia (if you want raytracing on in games).
What do you do when you need your password while out of the house? Because if you bring your notebook, then you've INSANELY decreased your security (forgotten, bag where it's in forgotten, left lying around open, looking at it while people can check over your shoulder, it gets wet/damaged, etc.)
Firefox on desktop and Mobile. To keep browser monopoly away. All settings set to max strictness except no DNS, because I have a VPN. Firefox works on 99.9% of sites. You can use a script called Arkenfox, to harden FF even more, almost to Librewolf, but with the advantage of updates coming directly from mozilla. I love the sync function across FF, so that's why I have it on my mobile as well, it's seemless.
I think we have to give credit where it's due and a lot of Linux apps (mostly the non-distro ones, so no Gnome apps etc.) Do have quite dated interfaces. I can't find a nice mail client except mailspring and bluemail, both of which then come with some features not working (depending on your distro etc.)