yes it does, just tried it, works just as well as all the stock Android ROMs I've tried so far.
Sadly, for me that means no surround-sound pass through via HDMI to my receiver, everything is reencoded to stereo PCM.
This is the 4th Android firmware I've tried:
1. was the Stock is was delivered with.
2. "H96_Max_X3_S905X3_20210323_9.0_Amlo_(by_naijarom.com).zip" from https://naijarom.com/h96-max-x3-s905x3
3. "AML_user_H96MaxX3_9_20230208.2110.img" from https://androidpctv.com/firmware-h96-max-x3/
4. "[v9]+Aidan's+ROM+(H96+Max+X3)+(IT6334)+[S905X3]+[ATV+9].rar" from https://aidanrom.com/project/s905x3/
I've tried all the sound settings I could find on each one, none of them even those that had settings that suggested it should work actually output any surround sound, neither directly passing through the DTS and other audio streams, nor as decoded multi-channel PCM. Ever Android ROM I've tried so far only output stereo PCM so far.
But I know the hardware is capable, since I've also tried CoreElec ("CoreELEC-Amlogic-ng.arm-20.1-Nexus-Generic.img") and that one finally did output surround sound, both reencoded multi-channel PCM (initially) and after enabling it in the settings directly passed through digital streams. YAYY!
Sadly, CoreElec not beeing based on Android means none of the nice streaming apps that I would like to use, only non functioning super complicated Youtube Kodi plugins with manually creating API keys and stuff like that. yuck.
Does anybody have a hint how to get working surround sound with an Android ROM on this device?