One thing the OP mentioned but I think isn't talked about much is that for me everyone has their own style. Some people have great abstractions, others lots of tests, some more code comments, interesting variable name choices, some like functional-style, or lots of frameworks & patterns etc. From our team I can often see who wrote something just from how its written.

Now as a junior I just wrote how I liked and hated everyone else's code. Then came a long awkward phase where I tried to fit in closely with other people's styles and figure out their intent and design - this is a very difficult way to write code and I wasn't very productive. I thought about this a lot and now I just go ahead and blaze a trail and other people can just figure out my style. Move fast and break things - or being reckless, its often hard to tell, but you wont be a 10x dev by trying to be nice and fit it.