Random shuffle of a rubik’ cube properties

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While shuffling a Rubik’s cube, I noticed that if my shuffling had a pattern I subconsciously assumed it isn't shuffled enough so I do couple more rotations.

But, knowing that pattern can and do appear on random processes I wonder what probabilistic properties a random shuffling of a Rubik’s cube say $n$ rotations have.

  • What is the average /maximal number of cubical of the same color laying on the same face, in expectation?

  • How does the entropy change was $n$ increases?

  • Any other interesting properties?