the table of content in the STM32H743xI datasheet Rev 2. misses subitems in chapter 5 "Pin description". Other datasheets have such subitems and allow fast access to the list of port alternate functions.
The list of Tables for Port alternate functions are available in the datasheet (page 80-93)
But the table of content lacks many subitems. Look how few triangles indicate subitems on the H7 datasheet:
Much more triangles on F765:
Retrieving data ...