I started writing software in 1984. Over the years I worked with many languages, technologies, and tools. I have been in leadership positions since the early 2000s, and in executive roles since 2014.
The more technical knowledge you have, the better you can be as a PM. That said, it all depends on the type of teams you are working with, mostly so that you can follow the nuances of the discussions.
I'd recommend focusing on soft skills before you focus on technical skills. You can add much more value as a great people person than a somewhat technical PM. Becoming "technical" as a PM will take a long time before it brings value, but focusing on people skills will make you stronger much faster.
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The more technical knowledge you have, the better you can be as a PM. That said, it all depends on the type of teams you are working with, mostly so that you can follow the nuances of the discussions.
I'd recommend focusing on soft skills before you focus on technical skills. You can add much more value as a great people person than a somewhat technical PM. Becoming "technical" as a PM will take a long time before it brings value, but focusing on people skills will make you stronger much faster.