Coding directly in assembly is rare.
I used to think that, but when you're dealing with a lot of low-level stuff you'll eventually realize that Compilers are pretty bad at generating fast and reliable Assembly where it's needed. Also, some Architectures have specific machine instructions that Compilers just don't take advantage of, no matter what flags you enable.
I pretty much share the same experience. I avoid using docker or any other containerizing thing due to the amount of bloat and complexity that this shit brings. I always get out of my way to get Software running w/o docker, even if there is no documented way. If that fails then the Software just sucks.