I have worked in Sales and Support for nearly twenty years and if you experience all the problems, the customers have, you start searching for them on your own devices and start doubting your own reason. That's pretty much the same with doing.to much research on possible problems online.

Your Pixel6 asks for allowance. Your DAC recognizes it by indicating the pass through via LED. So I would imagine it works. What it doesn't do is change led colour by audio format. Could that the format is not transmitted. Could also be that the driver doesn't communicate the led change correctly.

What happens to the LED when you plug your DAC into windows and use Tidal from the desktop. My HiBy is much more reliable in terms of LED change with Windows than with my Sony Xperia....