It is an oddly missing feature. In the past I have unfollowed a non-mutual or two (before the site got huge) because there were a bit too many reposts from them and it just made my following feed too big.
That being said, third party apps like Deck Blue might have it?
I had to mute one person whose original posts I really like, but SPAM reposts on a particular keyword that I don't especially care about. I wanna see his posts but I need his posts GONE
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As others noted, you can use the "Mutuals" and similar custom feeds like "OnlyPosts" to hide reposts as well too.
https://bsky.app/profile/skyfeed.xyz/feed/only-posts
That being said, third party apps like Deck Blue might have it?