Running activity export missing GPS metadata

I do not think that those data fields are being logged and exported. Personally, I do not have those fields in my GPX files at all (Garmin Instinct), and it would also make little sense to me, since the data is irrelevant to the fitness tracking. It would just take  much more room in memory and would be useless for 99.9999% of users. Do you really see those empty fields in the GPX file when you view it with a simple text editor like Notepad, or just after importing it to some GPS application?

I see them when I import the GPX files to some software I'm using to aggregate/play with it a little.  It's a data ETL software so it's pretty thorough; maybe the GPX file just makes those fields by default, it would make sense for an actual GPS unit to record them, but it does seem a little unnecessary for a GPS watch.  I still wish it did though!  The data nerd in me wants to see all that.

Unknown said:

I see them when I import the GPX files to some software I'm using to aggregate/play with it a little. 

Open the GPX file in Notepad (or in another simple text editor), I bet there are no such fields at all, and that it is just your software adding those empty fields. Adding all this data to the log files would double or tripple the storage requirements, with absolutely no added value for the fitness tracking.