Found a bug in it already.
Open the camera, select the Bixby icon, take a "shopping" photo of an item.
Note that you'll (possibly) get a list of items that match the one you've photographed.
Select the "View <n> results on Amazon" link at the bottom.
On my phone, at least, this opens the Amazon Shopping app (not a browser to amazon.com) showing the items.
Now, select "Filter" and choose the "Prime" filter.
Amazon crashes.
100% reproducible on my phone, my kids' phones and my wife's phone.
No amount of cache-clearing, data-deleting, phone-restarting, or chicken-entrails-reading seems to change the fact that it crashes whenever the "Prime" filter is chosen. Interestingly, it does NOT crash if "Prime (Free One Day)" is chosen. It also doesn't have a problem if you disable the Amazon shopping app, and allow Bixby to open the list on Amazon's web-site via the browser (be it Chrome or Samsung Internet).
Anyone else reproduce this?