If your goal is high quality audio, you’ve lost the battle the moment you put Bluetooth in the signal chain.
As for shielding usb devices, I’m going to guess any respectable DAC over $40 will be okay in that regard.
I’m mostly poking fun at the audiophile scams that claim absurd crap. It would not suprise me if one claimed that even a quality usb cable was the cause of all your troubles and you need some overpriced word vomit cable to achive better sound.