I went to my Verizon store, and they thankfully had a display model (though it was unmarked, as they said they didn't get the new display inventory in until late last night. It took over a spot previously occupied by the Pixel (which actually wasn't on display at all).
Anyway, screen was vibrant and looked nice. I was surprised just how thin and light the phone was, so definitely OK with putting a case on it to bulk it up. Seemed snappy, and the demo model didn't have much bloat that I could see. It did have Verizon branding on the back though.
I tried to test out the screen hotspot issue, but the store was too bright. Went to a mostly black screen, but didn't notice hotspots. When I get the phone, that'll be one thing I test repeatedly in the first 14 days.
Take this for what it's worth, but the store's asst manager told me that the silver-only selection is apparently just for a few weeks, as they are at least getting black by the end of the month. She wasn't sure about blue though.