About the Qualcomm processors, I’d advise you to wait. There’s a lot of hype going around, and apparently, it isn’t as good as Apple’s ARM processor. Honestly, AMD processors are almost what you’re looking for - low-power processors, highly performant iGPU, bang for buck. In fact, if you look at the newer processors, they also provide power-efficient chips, which is almost similar to the big.LITTLE in Arm - Zen4, paired alongside Zen4c. This pattern is also visible with their newer Strix Point - having both the Zen5 and the Zen5c chiplets.