Hi @dabassgoesboomboom, a little off-topic but related:
Just for info i’ve tested RPI3 + official 7" Touchscreen powered via IFiPower (5V, 2.5A) under DietPi running web controller extension (via chrome browser).
I’ve got the yellow lightning bolt on the screen and terrible audio interferences and noise via USB (external DAC).
See: https://community.roonlabs.com/t/roon-extension-roon-web-controller-v1-1-1/26921/42
Obviously no problem if the touchscreen device is out of audio signal path (my prefered setup).