I’m not sure we are talking about the same thing with the leveling. You should only ever have to level everything one time, then fine tune your offset with the set screw. level the x gantry with the motor mounts, this is the biggest part. Then you level the bed to the nozzle. one time and it should stay for months and months unless you move your printer.
If your prints are fine then they are fine, no big deal. If you see an issue you would know where to look.