Exactly the same. I've been a "developer" for decades, often using a new language for a single project, then never touching it again for years, until I've forgotten the basic syntax. I'm an expert in nothing.

Stack Overflow, random Indian YouTubers, Google and now AI have been _essential _ throughout my career.

You only need to know _enough _. Know what your want to achieve and the rough steps for how to get there, and somebody or something can fill in the blanks.