That is interesting behavior, thank you for checking and responding!

When I click 'Saved' on other people's profiles, I see empty results, but probably because of what you said - I haven't saved anything yet so nothing to show. And I would have never guessed that clicking 'Saved' on other people's profiles would show my own saved stuff.

Can people see what I save? I want to start saving comments and posts, but I don't want other people to see whatever I've saved.

I also don't see any sports stuff when I'm on lemmy.world, which I think is the same instance as the original poster? I don't know what's accounting for my different experience either.