Very rarely with 35mm, usually when testing a lens that has that option. Certainly with large format, particularly 8x10 or larger.
I do have one or two old 6x9 medium format folders with very limited shutter speed selections where f/22 or even f/32 is sometimes necessary in order to get a realistic exposure.
I rarely enlarge past 8x10 and when I do it is almost always with 6x9 or larger film formats.
BTW, I am usually more interested in getting the image I am going for than worry too much about sharpness. If I were really into sharp images I would rarely ever shoot handheld since I suspect that is a bigger killer of sharp photos than diffraction ever was.
EDIT - I know, I know, all of you are rock steady and can take super sharp photos at 1/15s or slower. I can't