Best way to connect KS9500 and Pioneer VSX LX 303 for Atmos

[Klpd]

Hello

I have the Samsung 65'' KS9500, and a Pioneer vsx lx 303 av receiver. I am not sure what the best way to get 4k/hdr and crucially, Atmos content to play from Amazon Prime or Netflix would be.

I would ideally like to play content using the TV's inbuilt apps. But would ARC support atmos ? What about a TOSLINK cable to the pioneer?

If not, am i limited to playing content from maybe a Roku SS+ / Xbox One S etc , connected to the av receiver ? This is less desirable due to the need for using multiple remotes, so would ideally drive the media from the TV's app and remote.

Many thanks for any advice.

[MW1987]

With the tvs built in apps through arc you are getting dolby digital plus atmos which is decent but with the AV receiver you have I would use the xbox and connect a hdmi from the xbox to the AV and hdmi to the tv then you get lossless TrueHD Atmos