Android Smartphone Video Streching works partially

[downtoground]

Im running this extension on my Android LOS19. The Kiwi Browser is able to run Extensions.

The Extension works out of the box, but the mode "Streching" wont use the whole screen over the camera.

This Extension works better: https://chrome.google.com/webstore/detail/zoom-to-fill-ultrawide-vi/adpjimagbfpknkodpofjphpbdlfkeiho but has no gestures!

Hope for a Fix! Thanks a lot