Calibrating printer

Just got my p2s yesterday. Been printing. Most came out good except for a plant pot that had some minor defects. It then got me looking into calibration which is a rabbit hole in itself. I’ve done some calibrations and I guess reset or overwrite other calibrations I’ve done already? I now have like 3 filament profiles for the same filament. Calibration can seemingly be done by filament, bed or printer? Maybe other options? I’m confused at this point and just want my printer optimized for quality prints.

Can someone point me to a detail guide explaining what different calibration does and which order to do them in, how to properly use saved filament profiles, printer profiles etc for new prints? I’m using bambu studio and SUNLU PLA META. I have PLA+ I haven’t tried yet.