Code here waits for pylance to load: https://github.com/microsoft/vscode-python/blob/be55c971cc2273243ca6b24ff9bef7e6ea9a09c3/src/client/browser/extension.ts#L28 Code here in pylance waits for python to load: https://github.com/microsoft/pyrx/blob/553a4973c452d76da62cc233ee15640eb0a6196b/packages/vscode-pylance/src/browserExtension.ts#L42 Nobody wins. If I open vscode.dev and install the latest insiders of both, neither extension loads.