Just to point out that the relationship of the FOV to zoom level is dependent on a variable in a cfg file for each aircraft. The table in the OP therefore cannot be relied upon unless you know an aircraft is using the same value that the table was created with.
For Asobo aircraft that seems to be consistent, but they don’t appear to even enforce it for MSFS native aircraft from external developers. For example the Bell 407 and Cabri G2 helicopters are completely different to each other.
God knows what the situation will be given how many developers are producing content for 2024.
See this topic for more details…