@Dimitrios-Kanellopoulos I wanted to mention that I had one crash a a few weeks ago, for which I had uploaded the logs, and the crash was then reported into the system with help of @Egika . In my case it was a vanilla Run sport with nothing special about it and me not doing anything with the watch at the time of the crash. The only special thing was, perhaps, is that I used the Run sport for the first time on the watch, but previously I did a number of activities with a customized Trail Run sport.
If that helps, I can send you the details (crash time, etc) again in the chat.