I am also seeing this when using Alt+~ with Caja. It does not show up with Alt+Tab. (Show Desktop Icons must be enabled in MATE Tweak, which is the default, but not my normal personal preference.)
This is on an up-to-date Bionic system, Caja 1.20.2-3ubuntu1
I am also seeing this when using Alt+~ with Caja. It does not show up with Alt+Tab. (Show Desktop Icons must be enabled in MATE Tweak, which is the default, but not my normal personal preference.)
This is on an up-to-date Bionic system, Caja 1.20.2-3ubuntu1