I have an Antipodes K50 sever to my Ultra DAC and use Roon as my core. The K50 does not support MQA only Roon, but if I set up the K50 to unfold and render in Roon it plays MQA on all the digital inputs I have configured for the Ultra DAC - 75 ohm, 110 ohm, USB and ethernet.
M confirmed to me that the Ultra DAC would render and play MQA regardless of the streamer/server.

Ultra DAC, Antipodes K50, Spiral Groove SG 1.2, Lamm LP2, T+A T1210R, VTL TL 7.5iii, Lamm M1.2, Wilson Alexia 1