I went to replace two kitchen dimmer switches with new toggle dimmers (the old dimmers work, this is only cosmetic). When I removed the face plate, I found the existing switches did not have a ground wire attached.
There does appear to be ground wires twisted together in the back of the box (see attached photo).
The previous owner remodeled the kitchen ~15 years ago, so I'm not sure if this install was just a quick carry over / install from the original switch install from the early 1980s.
Any info would be appreciated!