Will developing for others help me learn?

It's made me a better engineer. I understand the ins and outs of working with a team first of all. I wouldn't have gotten that opportunity if I hadn't been able to produce for other people. It's made me understand the technology as well. I had to take on challenges that I would normally not have even looked at, like maybe programming challenges in Kotlin, or maybe programming challenges with OTT, Over the Top, video streaming React Native. That stuff has helped my programming.