... This really shouldn't be surprising to anyone... AMD's RDNA GPU architecture has NEVER been the problem with Samsung's modern Exynos chips. It's always been the Samsung Foundries fabrication processes they were made on that's continually let them down. 🤷
This can be seen with Steam Deck's Van Gogh/Aerith APU, which makes it BLATANTLY CLEAR that AMD's RDNA GPU architecture can absolutely freaking SCREAM in super restricted <10W power envelopes when made on a good fab process!
In fact, considering JUST HOW BAD Samsung's pre-3nm processes were vs TSMC's equivalents (see 4nm Samsung Snapdragon 8 Gen 1 vs 4nm TSMC 8+ Gen 1), having AMD's GPU architecture helped them punch notably HIGHER than they otherwise would have, even if they still couldn't keep up w/ Qualcomm & Apple!
(Just see Google's Tensor chips all the for proof you need of that, seeing that for the CPU & GPU blocks they're just Exynos chips but w/ slower & worse ARM Mali GPU's swapped in for Samsung's licensed AMD RDNA ones.)