I didn’t know about the alt shortcut, I knew about the ctrl + alt + drag that duplicates the whole layer.
About copying and cutting, in PS, I select anything, right click and select layer via copy or layer via cut to have selection in the same exact position in a new layer.
It looks handy, but I hate it. Krita is way more intuitive, all it needs is one extra shortcut to tell it “in the same layer this time”.
Btw maybe the move tool should be operable in non precise way like the transform tool allows to. cf this thread The move tool very lag.why?