I listened to this kind of preaching and got myself a Lenovo ThinkCentre with Ryzen 5. What everyone forgets to mention is that these are loud. Fans are small and they spin fast. And fanless used mini pc market is kind of dry.
Also i think you can use ryzenadj to set a very low tdp and disable the fan?
My HP EliteDesk 800 G4 has an annoying fan even at the lowest speed. It rattles. The newer G6 model I have at work is quiet.