Maybe a little bit off-topic and controversial, but in my opinion auto-complete is overrated.
Doing software development is mostly reading code and documentation. Obviously one also writes code and for sure one can't memorize every function or package name, but searching for it isn't that much of a bottleneck? Some time ago I wrote Java using Eclipse (which had/has reasonable auto-complete), but when I switched to different languages, I also switched my IDE and mostly use plain text editors these days. There are auto-completion tools for text editors, but I just never invest the time to activate or configure them and AFAIK there aren't completion tools which work well across different languages.
Maybe I revisit them at some point, but at the moment I do not really miss auto-completion.
Doing software development is mostly reading code and documentation. Obviously one also writes code and for sure one can't memorize every function or package name, but searching for it isn't that much of a bottleneck? Some time ago I wrote Java using Eclipse (which had/has reasonable auto-complete), but when I switched to different languages, I also switched my IDE and mostly use plain text editors these days. There are auto-completion tools for text editors, but I just never invest the time to activate or configure them and AFAIK there aren't completion tools which work well across different languages.
Maybe I revisit them at some point, but at the moment I do not really miss auto-completion.