Hey! I developed a garmin application to keep track of padel match score.
initial version released today under https://apps.garmin.com/en-US/apps/697552d2-271d-40cc-a059-08a936f63993
Code is public under https://github.com/pedrorijo91/garmin-padel
At this moment is only released for forerunner 945 (the one i have). I think there's no reason for not adding support for other devices. let me know if you'd like me to add support for any specific watch.
Any feedback is welcomed