I feel like your just not using the proprietary drivers on amd it matters less but I hear the free Nvidia ones are not the best. See if your friend can help you install them or if you go it alone take a backup so you can restore it if you need without getting your hands dirty with the commandline.
It looks like the zorin process for doing it is pretty straightforward. I get better performance on my amd system using the propitiatory drivers than on Windows. Desktop Linux has moved forward pretty quickly.
Honestly you are not really missing much unless you need it. If it's working for you keep using what works!
Pretty much the only difference is desktop environment and being able to tweek stuff like the graphics drivers, the package manager for installing programs/updates but zorin and mint are pretty much just Ubuntu at the end of the day that someone made more friendly.
I would recommend you use the Linux alternative as much as you can rather than using wine to run exe files. In my experience steam native runs way better than running steam/games with wine.
For office stuff it can be like pulling teeth but thankfully most of it has functional web versions.
If you are scared of the command line start by just running stuff like firefox or chrome in it rather than the start menu. If you forget the command the tab key can usually guide you. Also "man command" will show a full manual for any command. Eventually there comes a point that it's faster and easier than doing things with the commandline and people will think you have leet hacking skills.
Thanks for the zorin recommendation I'm going to give it a try in a virtual machine and check it out. It looks like a perfect new person recordation.
Well I got this far. When I started, I wasn't even a bill, I was just an idea. Some folks back home decided they wanted a law passed, so they called bribed their local Congressman and he said, "You're right, there oughta be a law." Then he sat down and wrote me out and introduced me to Congress. And I became a bill, and I'll remain a bill until they decide to make me a law.
Bad bot!