KDE is the Gold standard in Linux Desktops. It has the most utilitarian behavior of all of the existing Linux desktops.
and on windows, check the binaries that exists, peruse,rkward, labplot, umbrello, krita, digikam among others. I use them daily without issue, hope someday calligra is back with windows binaries, sniff-sniff.
"It's what you learn after you know it all that counts." -- John Wooden