I am looking at the foto webcam images too and haven't seen the aurora myself, but the photos show a much longer timespan: For Wildhaus the first image with a pink/greenish glow is at 22:22

https://www.foto-webcam.eu/webcam/wildhaus/2024/05/10/2220

and this continues through the entire night https://www.foto-webcam.eu/webcam/wildhaus/2024/05/10/2230

till shortly before sunset, where the exposure time probably shortens too much to capture the color of the the aurora https://www.foto-webcam.eu/webcam/wildhaus/2024/05/11/0420

Other locations:

https://www.foto-webcam.eu/webcam/ewa/2024/05/11/0330

https://www.foto-webcam.eu/webcam/glecksteinhuette/2024/05/1...

https://www.foto-webcam.eu/webcam/hochleckenhaus/2024/05/11/...