I booked Bellagio with Renowned Hotels about a month ago, and the resort fee was clearly included in terms of the $ amounts, but it was just lumped into "taxes and fees". I recently rebooked due to rate drop and it is now broken out more clearly during booking as shown in the screenshot in the post above, but still not clearly stated as a resort fee in the confirmation email. I took screenshots to bring but I have read a positive DP that the Bellagio *does* know how to handle this properly unlike many other Vegas properties.
Chase honestly made a huge mistake trying to include this at booking time. Vegas hotels are generally not set up to handle this. This is why even FHR prepaid bookings in Vegas do NOT include the resort fee and state clearly that it's part of the amount due at hotel.
Honestly amazing how many issues there are with this rollout because it's the easiest thing to pull off in the world. The POR should have just been "copy FHR".