I am trying to decide between Tropy and Digikam to organize my collections of photos of artwork and artefacts. (I may be a historian, but I work with printed sources- paleography gives me a headache). Your documentation page https://docs.tropy.org/ imples that the core use case of Tropy is archival research.
How well suited is Tropy for working with iconography and creating a personal version of REAL Online with all the good bits in a painting or in a vitrine catalogued and searchable?