An interesting question was raised about satellites being tide-locked (Does a satellite naturally turn in phase with its orbit, always facing Earth?).
It was a educational read for me, and in one part there is a comment that like our moon, there are other moons that are tide-locked. I began to wonder if in theory larger planets could also be tide-locked and if in practice we actually of know some specific examples of some?
My thoughts are that such a planet would be less hospitable as there would be a warm and cold side, unlike a rotating planet which would have more graduations in the temperatures.