I use Canary. If Canary does not work properly I can install Development. Canary and Development install to different locations and can run side by side.
Apparently the new layout of the settings page, the dark mode on the NTP and the new options to control the news feed are now available to all insiders.
Yes, they are. Plus some minor changes. Now that the Setting page is gone through some changes, I think it's better to get rid of some tabs. I mean, for example they could easily merge New Tab Page with Appearance. or Printers, Reset Settings and even About Microsoft Edge with System. To have these settings in separate tab seems redundant to me.