Using ArcGIS Pro 2.8
When using the Calculate Geometry Attributes tool to add Lat/Long fields to feature class points, the output coordinates are always in metres, despite specifying the Coordinate Format to be Decimal Degrees in the tool.
When I specify the coordinate format as DD (changing from the default 'Same as input') the option beneath to specify the coordinate system disappears, so I've been setting the coordinate system through the Environments tab. This doesn't happen for colleagues when using the tool.
I've tried Adding Fields before using the Calculate Geometry Attributes tool to make sure the data type is set to Double, as I'd noticed that the fields created by the Calculate Geometry Attributes tool automatically were set to Text, but still no luck.
I've checked my default Location Units, and they are definitely set to DD.
I've also checked the basemap properties, the Map Units are set to Metres and I can't adjust that, but the Display Units are DD. Not sure why or if this would be relevant, but I've been running out of options!