As ID said, obviously if you’re working around an injury, partial ROM exercises can be great.
In terms of growth, the old standard is that you work a muscle through it’s full ROM, until you start to fatigue, then continue working through the strongest portion of the movement, as you’d no doubt be unable to eek out more reps in the weaker portions. When discussing partials used in this manner, we’re usually focused on the middle segment of the ROM. There have been many coaches and trainers who have expressed thinking that by focusing the majority of your training on the strongest range of motion (the middle portion), that you can get better results than being limited by the weaker extremes.
Of course there are always benefits to focusing on different sections of a compound movement due to the multiple muscles that are called in to play. How many times have you seen someone bench pressing, but only doing the top (lockout) 1/3 of the movement. This will typically result in sub-par chest development as the triceps and delts contribute a lot to this range, and the chest muscles never get a good stretch.
On the other hand, you will also find a lot of more experienced, and developed trainers focusing more on the bottom 2/3 of the movement. This allows more stress to be placed on the pecs, from a full stretch at the bottom, through the strongest mid-range, and then completely avoiding the lock-out portion where tension is actually removed from the pecs.