> "...most of my Pi 4-based projects seem to idle around 3-5W."
Some current Intel NUC models can manage less than 5W idle power as well, e.g. https://www.anandtech.com/show/15571/intel-nuc10i7fnh-frost-... but don't have the limitations of the Pi.
Some current Intel NUC models can manage less than 5W idle power as well, e.g. https://www.anandtech.com/show/15571/intel-nuc10i7fnh-frost-... but don't have the limitations of the Pi.
Either I got lucky with the two I own, or your environment was to harsh for them?