I use Qobuz on my Android and like it - it's a bit cheaper than Tidal. This is what tech radar had to say about hi res on the Max:
"Despite the high price of the AirPods Max, support for
Hi-Res Audio files is limited to Apple's own
Apple Digital Masters tracks, which are only available via Apple Music. Again, this makes it feel as though we're being somewhat shortchanged, as we'd expect comprehensive codec support at this price. "
I'm not sure if there is something in the Max that limits the Hi-Res capabilities to Apple Digital Masters or whether sources like Tidal and Qobuz can also be used for Hi Res over lightning to 3.5.