Macbook Pros with M1 Pro can support two external 6K 60Hz displays at once, and M1 Max can support up to three 6K external displays plus one 60Hz 4K display (José Adorno/9to5Mac) - TechnW3

Macbook Pros with M1 Pro can support two external 6K 60Hz displays at once, and M1 Max can support up to three 6K external displays plus one 60Hz 4K display (José Adorno/9to5Mac) - TechnW3

José Adorno / 9to5Mac:
Macbook Pros with M1 Pro can support two external 6K 60Hz displays at once, and M1 Max can support up to three 6K external displays plus one 60Hz 4K display  —  Apple announced during its “Unleashed” event the new MacBook Pro powered with the M1 Pro and M1 Max chips.

from TechnW3