Yes, Copilot supports skills. Practically all agents support very similar feature sets or are actively building up parity support if not already there. The only real difference between systems is the prompt and payment method. Copilot even allows you to use Anthropic's own skills repository: https://github.com/anthropics/skills
https://docs.github.com/en/copilot/concepts/agents/about-age... details the support for skills. https://docs.github.com/en/copilot/concepts/agents/copilot-c... details the CLI tool in general, which seems more or less on par with Claude Code's.
1. Tooling is changing very fast but people tend to form sticky opinions (reasonably enough - there’s only so much time in the world).
2. It’s just hard to form robust objective opinions - you have to make a real effort to build test cases and evaluation processes and generally the barrier to entry there is pretty high.
So - I agree, calling people uninformed is not a great way to win them over, but maybe that’s the price of living in a world of anecdotes which become fixed in people’s minds.
I've just had a chat with Copilot's Opus 4.6 go off the rails after compaction today.
And, ultimately, proving my point. Did you actually explain why you thought it’s superior? Or is it just because GitHub bad? Have you even tried it recently?
Unfortunately it’s self defeating to educate them.