I had no choice most of my career doing Rails. Now I do C++ and I would fight to the death to keep autocomplete. But Copilot I bought a license for a got a refund for after a few months. In the net, it wastes your time. And I mean, copilot in particular is especially bad. It refuses lots of valid programming questions. Other LLMs are better. But they still are wrong a lot.
I am looking for a terminal/offline LLM I can use for templating tasks, as most other programming mistakes are caught by my linters and tests anyways.