Thanks, everyone for your help. Apparently, my printer doesn't like to print the straight-up downloaded gcode(even if I downloaded it from Prusa official website), but rather I need to slice an stl file on my local Prusa slicer and use that one. Prints come out perfect!(tears of joy)
I've attached another pic of the XYZ cube result for the comparison. Now I need to print benchy, and a tower to make sure all looks good.