Not sure why you were downvoted but this is true - desktop Ryzen chips have terrible idle power usage due to the IO die. The APU variants have lower IPC and performance due to lower cache, but have good idle power usage. There's no way to get both good idle power and good IPC.

Right but surely that just means that the same power draw also exists with intel chips, it's just located elsewhere on the board. Something has to do IO after all.

Not quite true, because on-die data transfer is a lot cheaper than off-die. If you look at full system power consumption between even chiplet based and monolithic Ryzen products there is a large difference.