A:Answer It is not, unfortunately. You'll have to go through your TV if it supports eARC - if it doesn't support eARC, you'll only get lossy Dolby Atmos. My setup is as follows: Xbox Series X --HDMI2.1--> LG C1 TV --HDMI_eARC--> Vizio soundbar. This way I get everything - HDMI 2.1, 4K, 120Hz, VRR, ALLM, Dolby Vision, and lossless Dolby Atmos.