If you are leaning towards Lumin, I should probably share my less than stellar experience with their app.
Almost every time I use it, it will back out of Tidal, or the Lumin app will crash altogether. Yessss, it’s updated, unplugged/rebooted (network & streamer), hard wired connection, new switch, router, NAS, modem, Supra Ethernet cable blah blah. No change. I have Bluesound equipment in another system (on the same network) with absolutely zero problems- even when I use Tidal through their app. Opinions may differ, but for me, Bluesound’s app is where it’s at! Reliable and easy to see info with an intuitive user interface. Lumin’s app is nowhere near as reliable as or intuitive as Bluesound’s app (for me). I’ve tried different, older iPads, newer iPads, iPhone 6, new iPhone12pro: nothing has made a difference. Lumin app does not work well with Tidal (for me). I went so far as to purchase a 2nd Lumin streamer to see if that was the problem. No change. Im not a horizontal-scrollin’ Roon fan at all, but I might be soon. I’ve just about had it with the slow, laggy and crash-prone Lumin app.
YRMV