Really pleased to confirm that the team have rolled out support for Burst Photo transfer when moving from iOS to Pixel, and is available as part of Android Switch.
With this update, you'll always keep your full set of burst photos when transferring via cable or WiFi, meaning you can always choose a different best shot, even after making the switch from iOS to Pixel.
The feature is live now for up to date Pixel devices through initial setup and the Android Switch app.