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I used to dislike hoods for the size, but since I got into RF lenses, I use them all the time. First they are much smaller than their DSLR counterparts, and kind of look cool too, especially the vented ones.
I hated the huge Canon supplied hoods, especially when traveling with numerous lenses - they added so much bulk. Then I discovered the collapsible Mamiya 77mm rubber hood, and bought two to use with step rings with all my lenses 50mm and longer. Love them, especially because they take up relatively little space in the bag.
Now that a lot of my work is rangefinder based, some lenses come with quite nice, relatively compact hoods, which I like. For others I've bought cheap *bay vented hoods. I have a tendency to bump things, so like to use hoods as a protective measure. And when handling the small lenses in a satchel, it's easier to grab them by the hood. Keeps fingers off the glass!
Edward - thanks for the tidbit about the ZM85 (f/4 I assume?). I tried one and thought it was decent, if a bit slow, but didn't have a hood for it...
I use hoods all the time... except with my 17mm TS-E.
Hoods are great bumpers
That's what your left hand is for with the 17mm - temporary, positionable on-demand shading.