Here ya go.
https://www.how2shout.com/linux/how-to-install-kde-plasma-gui-on-linux-mint-20-1-desktop/
Thanbk you for the link.. never saw that one before, although I have installed KDE over Mint. Too many issues :/
Thanbk you for the link.. never saw that one before, although I have installed KDE over Mint. Too many issues :/