The following article may be helpful.
@lukasmaximus 在 MicroPython lcd.qrcode is not work 中说：
Thank you for your reply!
By your explanation, I understand that there is a difference between the two services.
I was thinking of using M5 Cloud Offline to use M5 Stack offline.
I usually use Python, so I wanted to use microPython.
However, given the richness of the library, I felt it should be implemented with cpp.
In the future, if microPython 's functions are enhanced, I would like to try again.
Please let me ask a question about microPython.
Regular M5 Cloud no
MicroPython does not have lcd.qrcode.
However, M5 Flow UI has lcd.qrcode.
Is there a way to use lcd.qrcode with M5 Cloud?
Is there specification information on lcd.qrcode of M5 Flow UI?