I've found DigiKam to be the most fully featured of the photo managers I've used. It even does facial recognition on your local box w/o sharing your data like m

I've found DigiKam to be the most fully featured of the photo managers I've used. It even does facial recognition on your local box w/o sharing your data like most of the cloud hosted options. I'm not in love with the UI/workow but it works and can be installed on most OS I think.