To be honest I've found interoperability to be a pain though. So what I do is store a ".meta" file in the directory of each set of photos. That contains "loca

To be honest I've found interoperability to be a pain though. So what I do is store a ".meta" file in the directory of each set of photos. That contains "location=" and "tags=foo,bar". Then I have a wee shell script to search. If I need to I can have ".meta.IMG_FOO.CR3" to store per-picture data. But generally I order by date + location anyway, so having one file in a directory works out well.