Snapmaker 2 A350 unusable bad printquality

I guess your print is printed too hot and your part cooling is not strong enough yet.
Maybe your filament is wet.

Are you sure your extruder is well calibrated now? +16% is more difference than normal on the single extruder (mine was “only” 10% different).

May share your print settings for further insight?
Material, print temp, bed temp, enclosure?, speeds, infill,…
Did you try other filament (brand, color, dry)?

Maybe here some reading: