Question about Shanling M0 Pro

Hello, I can't say anything about the playlists as I create folders on the PC and save them using drag and drop. However, the playlists item is listed in the device menu.

I discovered the following on the net:

The M0 Pro does not have an internal memory, but it does support microSD cards with up to 2TB (according to the manufacturer). Future-proof: The data is transferred to the player via USB-C, and the inserted memory card is also properly mounted as a drive under macOS, just like its predecessor - thanks to a proprietary OS instead of Android. This is not always the case, even with players that cost ten times as much!
I had a 400GB card scanned with just over 20,000 titles on it. And the M0 Pro scanned it without any problems and navigation through the music library works wonderfully. In addition to library navigation, classic folder navigation is of course also available.