> So is it strictly necessary to sign up for the 200 a month subscription?

No, the $20/month plans are great for minimal use

> Because every time, without fail, the free ChatGPT, Copilot, Gemini, Mistral, Deepseek whatever chatbots, do not write PowerShell faster than I do.

The exact model matters a lot. It's critical to use the best model available to avoid wasting time.

The free plans generally don't give you the best model available. If they do, they have limited thinking tokens.

ChatGPT won't give you the Codex (programming) model. You have to be in the $20/month plan or a paid trial. I recommend setting it to "High" thinking.

Anthropic won't give you Opus for free, and so on.

You really have to use one of the paid plans or a trial if you want to see the same thing that others are seeing.