About updating Edge Insider.
On Windows platform, the Edge Insider uses in-app updater. It's the same method as Google Chrome updater.
But on macOS platform, it uses Microsoft Update app. The user experience is not good actually.
First, every time I go to About Edge Insider, it always say "update is in queue". I have to launch Microsoft Update app manually. But Microsoft Update app is hidden on macOS by default.
Second, Microsoft Update app download speed is extremely slow in China. I took look into the issue and found some Microsoft Update download nodes for macOS are blocked in China.
Above all, the Edge Insider update experience on macOS is very bad.
Thank you for bringing this to our attention. I will relay your information to the product team.