I haven't used Sooloos for a while, though I do like it so I thought I would try it again to see whether it would work at all (I have a Roon Rock nucleus on the same network as well) and whether Tidal would work. I am delighted to report that everything, including Tidal, with the Sooloos core on my QNAP TS-253A, is working perfectly.

Cinema/Music: Trinnov Altitude32 8-16,218,Cloud 4 channel, Marantz UD5007,DSP5200SE(2+C),DSP3300(4),DSW(2),271,MShort Ceilings,AppleTV 4K
TV: Marantz SR7013 Wharfedale Diamond 9x4+Celestion(C)
Music: Roon,i7NUC8gen,QNAP TS253A, Sony Scala, MS200, Garrard DDQ650,Wharfedale Diamond 12.3
Kitchen: AD88 (bluetooth via i80).