photo management – What data does digikam actually share?

I am planning to switching from Lightroom to digikam as I do not like the subscription model.

So far digikam looks very interesting. After reading the privacy statement I am a bit puzzled. Amongst other things it says “For a better experience while using our Service, we may require you to provide us with certain personally identifiable information, including but not limited to pictures. “

Does someone know what data digikam is collecting?

Are they collecting data on my pictures and tags?

Do the collect data from the face recognition?