Apparently, this is still the state of things 13 years later... Now with the world filled with indoor virtual workout environments and people like me using the Garmin watches on all kinds of sports, is there any way to bring this run//bike/other limitation a litttle more up-to-date and provide ways to import and export data that can describe the actual activity taking place?
You can try requesting it from Garmin at Share Ideas | Garmin, but I doubt anything would change. The TCX file is a very old deprecated file format, since many years replaced byt the FIT format (export as "Original"). Practically all 3rd parties connecting to Garmin, use the FIT protocol. So there is not a lot of hope Garmin would be willing to spend any resources on the long abandoned format.
Apparently, this is still the state of things 13 years later... Now with the world filled with indoor virtual workout environments and people like me using the Garmin watches on all kinds of sports
What exactly are you trying to do? Which watch do you have and which sport(s)? A lot has changed with Garmin since this thread was started, so maybe there is more to this issue you're having.