Thanks @soix. I agree.
My question was a bit theoretical, but I've had negative experiences with some streamers (quality of the app, needing to regularly reboot it).
Most R&D in entry level streamers is SW rather than focusing on the sound quality feeding an external dac. I own an Denafrips ares12, and wondered if a DDC that provides like i2S comes really close to leaving the field of all the streamers in that < $1500 price range. I'd have to step up to a much higher end streamer to notice benefits.
The only way to know is to audition and like you said, there are many variables. It's a bit embarrassing to be rocking this Wiim Pro, but I haven't had a single glitch with that product. In 3+ months, it's always just worked with Tidal and Qobuz. After finding something that works, my desire to upgrade is really low.