Comparison between jpg2000 and xml files for Sentinel 2A

Hello, obarrilero.

I’m having trouble now that the reflectance value displayed in snap is different from the reflectance value displayed in python.

There is a double difference.
Is this related to the difference in levels?

L2A images are used in python.
And in the snap, it is displayed as Level-4.

Questions I asked in the past in this forum