Shield / Android TV Digital Picture Frame using Google Photos Album: 2024 Edition?

I have tried the following option but checking if anyone has something easier or a more ideal, modern solution (seeing threads from many years ago which have since lost functionality):

Goal - Turn TV into Digital Picture frame with HA smarts/automations
Start: Trigger on Nvidia Shield with Presence Sensor (Easy), then:

  • Nvidia / Chromecast Screensaver “Backdrop” Feature + Google Photos “Dreams” functionality - Basically if you select backdrop in the Nvidia screensaver settings it will then play the Google Photos album.

Pros:

  • Easy Google Photos connectivity
  • Very good privacy - I have seen numerous slideshow apps recommended over the years but I’m uncomfortable with all of the Google Account permissions they ask for
  • Nice of them to sometimes collage the photos so it’s not a boring static slideshow

Cons:

  • I have struggled to shorten the trigger time because if I customize it via ADB, Nvidia no longer triggers the screensaver at all.
  • I have struggled to trigger com.google.android.backdrop from HA, but maybe I’m missing something?
  • Not a fan of the overlay that darkens bottom half of the screen - I want to see the full photos

Otherwise, I am expecting people to suggest: a different slideshow app + move away from Google Photos by just downloading the photos OR some sort of Fully Kiosk solution?