I know my way around docker and nginx and a lot of my code has been running online for years. I have never used the platforms you mention because the employers

I know my way around docker and nginx and a lot of my code has been running online for years. I have never used the platforms you mention because the employers that used them had an existing deployment infrastructure when I joined. That also applies to a lot of tools. By the time I showed up a lot of complex tasks had become a two word command. I could focus on writing code because other people had already worked on the developer experience.