I have read that there are some questions on why the universe and the structures of galaxies have taken the shape they appear to be now, and what disturbed the smooth distribution of matter during inflation.

Forgive me if this is already well know but it occurs to me ( in my simplistic view) that the shape of the galactic structures that we see could have been caused by quantum fluctuations during the initial stages of inflation.
While quantum fluctuations are very small, and assuming that they have remained consistent in shape and size ( probably the wrong way to describe this) at some point they must / should have bee able to represented a significant volume of the initial universe during the first instances of the inflationary period. If they pop in, merge and disappear, the volume they occupied would be open. Foamed inflation ?? As the expansion process of the universe was happening so rapidly, this effect would have lasted a very short time, ( maybe 2 or three fluctuations at least?) before the expansion caused the proportional sizes between the quantum particles and the universe’s size to become too different for the effect to continue. This would have disturbed the uniform distribution of matter.
It also occurs to me that the addition of these quantum particles could have had another effect on the size of the universe at this time and that would be to make it rapidly expand at a greater rate than it did initially ( the cause of inflation), by the addition of the quantum particles at this time.
Just an idea