In my experience, when people need to know what commit belongs to what code, is the IDE the main driver: you see the line of code in the editor and automatically know what commit introduced it (e.g., via the git integration in the gutter). Typically you want to know as well all the other lines of code that were committed together (e.g., what does it take to implement feature X? Ah yeah, all these changes).

I couldn’t care less what changes were introduced in a particular commit (what for? Debugging? Your features should be small enough that debugging them shouldn’t be a pita anyway)