All Ryzen mobile chips (so far) use a homogeneous core layout. If heat/power consumption is your concern, AMD simply hasn't caught up to the Big.little architecture Intel and Apple use.
In terms of performance though, those N4P Ryzen chips have knocked it out of the park for my use-cases. It's a great architecture for desktop/datacenter applications, still.
Sort of. Technically the Ryzen 5 AI 340 has 3 Zen 5 cores and 3 Zen 5c cores. They are more similar than the power/efficiency cores of Apple/Intel but 5c cores are more power efficient.