The imaging of the eclipse/transit Paul supplied is enjoyable that it is best left appreciated as something humanity hasn't seen before.

In size context, Phobos is considerably smaller than our Earth's moon, having a radius of 11.26 KM-

https://littleastronomy.com/wp-content/uploads/2021/08/moon_phobos_deimos.jpg

The JPL website states immediately that Phobos influences Mars crust and mantle, however, internal planetary dynamics shapes the geological evolution of a planet and specifically the differential rotation in the fluid beneath the fractured crust across
latitudes which plays a major role in the shape and surface features of the planet.

I would have thought that not just the differential rotation across latitudes, but also the differences between the rotation of the fluid mantle and the rock above it would attract experiments and analogies considering that clues on the surface crust are
so many and far more prevalent than the jigsaw puzzle of continental landmass.

That differential rotation across latitudes is not unknown and meshes wonderfully with the differences in Equatorial and Polar radii, it is somewhat exasperating that awful concepts like mantle convection still survive even if understandable much less
lunar influence.It is not possible to consider the relationship between cyclical planetary dynamics and geological evolution when researchers can't even give the correct Equatorial rotation velocity of the Earth!-

https://en.wikipedia.org/wiki/Earth

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