I never quite got the appeal of Rpi's. When I needed a silent low power home server box 10 years ago I went with Intel Atom x86 based board which supported virtualization and had expandable memory. When I needed a small low power box for and observer node this year I bought a Dell Wyse 3040 for 40€, also x86. If I wanted a general purpose PC I'd still go with a NuC or Minisforum these days.