TLDR: is the buzzing in linked video normal / okay / expected? If not, is there a way to fix it?

I’ve just been putting my Creality K1 through it’s paces, and after using up all the hyper PLA that came with the unit, started printing some inland black basic PLA. Since then, I’ve noticed some buzzing sounds on either pure x axis or pure y axis moves. Video attached showcasing it. It doesn’t seem to create any buzzing on infill moves or perimeters that have a radius. Any straight lines though seem to cause the buzzing. Prints seem okay (though inout shaper seems off for sure looking at corners). I don’t remember it happening with the hyper PLA which I printed at the same speed (I am printing the black inland at higher temp to compensate for reduced flow).

Thanks for any help or feedback! Enjoying the community on Lemmy here so far :)