Looks like the Samsung HW-Q90R soundbar got updated to have eARC finally ( firmware 1010.5). : r/Soundbars
Samsung HW-Q90R Review - RTINGS.com
Updating the Samsung Series 9 HW-Q90R Soundbar | Samsung New Zealand
Hogyan frissítsd Q90R-típusú hangprojektorod szoftverét | Samsung Magyarország
Samsung Support US on Twitter: "@filbo_vily My apologies for the inconvenience. Do you have a ticket from the previous repair? ^Nick https://t.co/X1iKdLbVk5" / Twitter
HW-Q90R Soundbars Low subwoofer with 1012.6 Firmware - Samsung Community
Solved: 1010.5 Firmware Update for hw-Q70R/hw-Q80R/hw-Q90R Soundbars - Page 5 - Samsung Community
Solved: 1012.6 Firmware Update for hw-Q90R Soundbar - Samsung Community