Question about XGIMI Horizon S Max (CH)

I will extract the audio from my playback devices using an HDMI hub and then play it to my system via TOSLINK. Unfortunately, the delivery date for the Horizon keeps getting pushed back because Digitec only gets a few devices or none at all. But hopefully I'll be able to share my experiences with you before Christmas. If you want the sound from the Horizon's Android OS to your speakers, you would have to do this via the one HDMI with ARC. But then you can't connect any other playback devices.
Here is my chosen hub: Lindy Matrix Switch
Lg