It's low power that is still making arm small computers popular. It's impossible to get a pc down into the 2-5 Watt power consumption range and over time it's the electrical costs that add up. I would suggest the RPI5 is the thing to get because it's expensive for what it is and more performance is available from other options supported by armbian.
Yet a Mac Mini does exactly that. Or like any Intel N100 based mini PC or laptop. Those also have way better performance, IO, and software compatibility. Raspberry Pi's fill a certain niche, but efficiency isn't it. At least not anymore.