I've got i3 and i5 systems that do 15W or better idle, and I don't have to worry about the absolute clusterfuck of ARM hardware (and those systems used can be had for less and will probably long outlive mystery meat ARM SBCs).

One of my Arm systems idles at leas than 1W and has a max TDP less than your idle draw (10W). I also have an N200 box, and a 16-core workstation with an obscene power draw - each platform has its pros and cons.

I noticed nuance is the first thing discarded in the recurring x86 vs Arm flame wars, with each side minimizing the strength of the "opposing" platform. Pick the right tool for the right job, there are use-cases where the Orange Pi 6 is the right choice.