I’m running Gramps 5.1.5.
When exporting my tree to GEDCOM, the CHAN Tag for each person is set to the same date - not sure what date it really is - maybe the last date I made a backup?
Is there any setting I could activate so it is either not exported at all, or with the real date of my last change to the person?
Adding a Tag to a record modifies the Change Date for that record. Which is one of the drawbacks of using the feature to to Tag or add a citation to GEDCOM data as it imports. You lose the information about the vintage of that data.
not sure if I get you right. Are you refering to the 4 filters which can be applied in the export options? All those 4 drop-down-boxes are literally saying “all”. The GEDCOM export should contain everything.
What came to my mind - I regulary use the builtin function to sort all personal events by date. I assume that could be the issue as probably every person gets accessed and modified? Even if nothing changes? (Usually 95% of all events are still sorted correctly since the last time the utility ran)