It's interesting to see that copilot has the worst overall. I use copilot completions constantly and rarely notice issues with it. I suspect incidents aren't added until after they resolve.

Completions run using a much simpler model that Github hosts and runs themselves. I think most of the issues with Copilot that I've seen are upstream issues with one or two individual models (e.g. the Twitter API goes down so the Grok model is unavailable, etc)