Can I use MS Office natively with that? Also, can I use it as a non-techie lay man in a way that is similar to the way most office bottom-feeders use Windows?
I know there is Open Office but I am lawyer and the free office alternatives just don't have the rich formatting options I need to do my job. I have tried and they just won't do.
First of all, libre office is very competent but I understand that it'll always be very behind whetever Microsoft decides to do next.
Office is available on all systems at office365.com if you must use Microsoft tools.
For the non-tech usage, very much yes. Most of the problems your hear about with linux stem from people trying to make it do stuff that you can't dream of doing on windows because it will stop you. Simply installing a system and using it to browse the web, edit documents, maybe install a few popular programs like VLC or Discord is set-and forget. System installers have recently gotten much more noob-friendly as well, imo the debian and Pop!OS installers don't really allow you to mess up. KDE is a good choice of DE, but you might be more confortable with others. Good news, you can decide later, as switching desktop Environments is easy and preserves your files.
In my opinion, it stacks up VERY well, even better, except the toolbar is by-default a mess for some reason while there's a very easy option to set it to tabbed.
How does the UI size work out for you? I recently took a look at it on a windows pc and the tiny size of most things is the one problem I have with it. Then again, I read something about being able to scale different programs individually somewhere (not for windows though)
My take: Linux users (including myself) are biased. While we would love to share our enthusiasm for Linux with others the simple truth is NO, you cannot just use Linux in the same way you would use Windows. We would argue the Linux way is just as easy not easier in a lot of ways. But it is a different system with a different way of doing things and if you are not prepared to learn anything new then it will bite you eventually.
And you can't use MS Office natively either. And no, Office 365 is not exactly equivalent nor is LibreOffice.
That being said I haven't used Windows outside of work in years and if you're interested and have some kind of technical knowledge or interest I would highly recommend it. It usually takes a couple of attempts before it "sticks".
ToC via Styles formatting and Table of authorities - these are from the top of my head, which I remember not working properly with Open Office. They need to work when I do them and also should be displayed correctly when I receive them from colleagues in docx format.
Format painter, track changes, spell checker in two languages, intendation adjustments, page breaks, and paste as text - I use these like crazy but I don't remember if they were OK in Open Office or not.
honestly Libreoffice is not on par with MS Office. I use MS at work and Linux at home and Libreoffice is great for general use, but it is very rough around the edges, and does not have all the capability that MS does. I wish it were not the case but lack of an excellent office suite is one weaknesses of Linux.