Great threat folks. I have reread several times.
One thing not mentioned is internet disruption. Simply put at times all internet service falters sending if you will a hick-up or quick pause in service. Obviously this will affect Roon and why it may go off/on. There’s only so much a buffer can guard against.
I live in a location with wretched internet service with 2 meg DSL or expensive 12-18 Meg dish being the norm. Fortunately we finally got Starlink and service on par with many other places. Point being you need a fast pipe as those in the business say.
I have gone back and forth countless times between the native Lumin app and Roon and I can tell no difference in SQ. YMMV
What I did notice is an EtherRegen, clock, good cabling and serious linear PSU audibly improved SQ no matter what app was used. Clean up the noise floor and you shall be rewarded.