I have no idea what caused it or when it happened but sometime in the last day I lost the ability to resize konsole..
I can use F11 to make it fullscreen mode, but in windowed mode when I put my cursor to any or the edges I have no ability to click and drag to resize.
Any ideas??
As a workaround, can you use Super-Right-Mouse-Button to resize the window? I’ve had to do that in both Xfce and Sway when windows were partially off the screen.
You have probably set a window rule by accident through the right-click menu.
Go into System Settings, type “rule”, and look for any rules that may be specific to Konsole. Just delete, edit or disable the rule based on your needs.
So KDE must have had an update because I have always used this setting and been able to resize the window, but as of the last couple days, without the window frame you cannot resize 
You should be able to resize by holding down either Super or ALT (or whatever you’ve set as your window adjustment key) plus right-click and drag.
