I recently replaced my aging but well dialled in FLSun Q5 with an Elegoo CC2.
I am very pleased at being able to print much larger things, but I get this effect at height. This is an egregious example but even cleaner prints still have obvious layer shifts.
We had a bunch of cheapo creality printers on wheeled tables at work. Some of the printers did something similar, so the wobbling was my prime suspect. But there was no correlation between fail and placement. It was printer specific.
Turned out to be issues with the z-axis screw and stabilizers. A good cleaning and, I seem to remember, a new bushing, was all it took.