Meanwhile Hamburg, Germany with only 1.8 Million:

I have an Ender 3 V3 SE, never did a firmware update and haven’t had any issues with bed levelling. The auto calibration does its job pretty reliably for me. However, mine had some issues with the gantry being at not quite right angle. It could still print, but it got much better after printing and inserting the appropriate shims under the z-rail mounts.