This is my expected behavior. Maybe it’s not a right vs wrong issue. But maybe more users feel like me.
In Monitor Settings, I separate a bit my two monitors. When I activate ‘Keep monitors attached’ (KMA from now on) I expect Lubuntu to actually put them together. But it doesnt. Thus there is this contradictory image:
where the option is activated but simultaneously they are clearly not attached.
Steps to reproduce:
Open Monitor Settings
Set KMA off
Open Monitor Settings again
Move monitors around. Leave them clearly separated
Set KMA on.
Expected: monitors snap together
Actual: monitors stay separated
Now if you move them they will actually snap together, but only if you move them after enabling KMA.