Sooloos has great merits if you want a simple system for presenting your music to you and don't want to be force fed what somebody else thinks you might like. If you always want the latest this and that then it is not for you.

I run a Sooloos system on various bits of old kit with a QNAP TS253A as the core device. I do not update it and it is completely stable. But, when I bought the QNAP it already had a newer firmware than was recommended for Sooloos. After a bit of badgering, QNAP sent me the old firmware, I downgraded to it and all was and is well. Which QNAP do you have?

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).