It is said that a galaxy moves or rotates faster than a speed of light in the universe. Is it possible that things can move faster than the speed of light

yes.
Warp speed galaxies come up when I talk about the expansion of the universe. Perhaps it's dark energy acceleration, or the earliest inflationary period of the universe when EVERYTHING expanded faster than the speed of light.

Imagine our expanding universe. It's not an explosion from a specific place, with galaxies hurtling out like cosmic jetsam. It's an expansion of space. There's no center, and the universe isn't expanding into anything.