Are you talking about MK8 on the WiiU, or MK8 Deluxe on the Switch?
For what it’s worth, I’ve only played the WiiU one, and I really enjoy it. It’s go as far as to say it’s the only Mario Kart I’ve really enjoyed. I don’t have a Switch, so I can’t talk to that version.
My very large organisation has Gimp available for basic image manipulation. I’ve tried to get them to use Paint.NET instead, but nooooo… Apparently we like hitting nails with jackhammers around here