In the past I had:
SMS-100
Squeezebox Duet
microRendu
Bricasti - M5
Still have:
NUC PC running Windows, Roon Bridge, Squeezeplay, and HQP NAA
Squeezebox Touch
Raspberry Pi 3B+ with touchscreen and DAC (sort of an SB Touch replacement)
Currently I'm using an RPi4 in a nice aluminum fanless case in my high end setup.
Works fine. Truth: I notice little, if any, SQ difference between the units.
My only complaint about the RPi is that it is too small. I will probably replace it with something a little larger and physically more audiophile.
I do like the Sonore units for the software package and the fantastic support.
My approach these days is more to look at features, support and the SW-UI involved, physical aspects-appearance-usability, and not to get caught up in SQ issues. For instance, I'd have a preference for something that is a Roon endpoint and also at least be recognized by LMS, and would prefer something with multiple outputs.