Metadata Cleaner is used, as the name suggests, to clean metadata. Load in files, or whole folders, and have the app remove any unwanted information. See what fields are being erased and the values they held previously. If your camera adds a location to photos it takes, but you don't want that (or any other extra data) shared, you should be using this app!
You can follow the app's creator here: @rmnvgr
You can get the app on Flathub here: https://flathub.org/apps/fr.romainvigier.MetadataCleaner