I downloaded Insiders and installed Github Copilot Chat, getting:
"GitHub Copilot Chat is not compatible with this version of VS Code. Please make sure that you have the latest versions of the extension and VS Code installed."
"GitHub Copilot Chat is not compatible with this version of VS Code. Please make sure that you have the latest versions of the extension and VS Code installed."
We are tracking this issue here https://github.com/microsoft/vscode/issues/239836