Like our moon is tidally locked to the Earth so that we see only one side.
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Strike 1: spectral class M red dwarfs are unstable and frequently produce extreme flares and coronal mass ejections.
Strike 2: a planet in tidal lock will demonstrate extreme changes in climate which complicate habitability.
Strike 3: a red dwarf emits most of its energy in the infrared while a yellow dwarf like our Sun peaks in the visible range. Liquid water is most transparent to light in the visible range of the electromagnetic spectrum, an inherent property of water. Is it just a coincidence that our Sun’s surface temperature maximizes the penetration of light into the oceans?
This planet may be a barren desert like ARRAKIS/DUNE........