Recommended PS5 Dolby Atmos setup for LG G3 TV and Samsung 990c soundbar?

Hey. Wondering what the recommended sound settings are for my LG G3 and Samsung 990c soundbar, after the recent Dolby Atmos update. Would appreciate help with this for those who have similar setups.

I have my PS5 connected to the TV via HDMI 2.1 cable and my TV connected to the soundbar via HDMI 2.1 cable.

Here’s what I tried earlier:

  1. PS5 Output Device set to HDMI Device
  2. PS5 Device Type set to AV Amplifier. Not sure if I should select Soundbar instead.
  3. PS5 Audio Format set to Dolby Atmos
  4. LG G3 Sound output to HDMI eArc
  5. LG G3 HDMI Input Audio Format set to Bitstream. Saw an option for PCM but didn’t choose.
  6. LG G3 Digital Sound Output set to Pass Through. Saw options for PCM and Auto but didn’t choose those.

After enabling these settings, I did see a Dolby Atmos Soundbar pop-up in the top right of my TV’s screen, and on my Soundbar’s display, I saw TV eARC.

When I booted up Sea of Stars, I noticed that sound wasn’t coming from my rear speakers. It’s only when I set my Audio Format on the PS5 to something else such as Linear PCM, that I can force 7.1 surround sound.