Do you guys have a few example pics I can look at? or via DM?
right now, the uploader decides what the preview image focuses at by looking at the "busy parts" of the full picture, e.g. textures and edges. this is called entropy cropping and is pretty standard.
so maybe we can switch away from the entropy strategy to a different one that solves this issue better.
of course, being able to put the preview focus manually would be the ultimate solution, but also takes more time 😅