It's now live for testing on the latest Google Canary #81.0.3997.0
Hope Edge Canary will update to the new chromium core soon.
Btw. I see from your screencast that you're too using the old/legacy keyboard (registry-key: "DisableNewKeyboardExperience"). With the fix the virtual keyboard now properly invokes on textfields in lastest Google Canary, but doesn't close when leaving or touching on an empty space.
But with the new virtual keybord it works. Can you please test and confirm?