It's all Clevo based anyway. System76 doesn't go much beyond what they source. It's a shame, if they actually made the effort to design a laptop that went beyond its foundation, I'd be more interested. But instead it's Clevo guts, Clevo problems.
Looking at the AMD laptop linked...
Lots of empty space that could have been slightly optimized for a larger battery. It just seems basically thought out... not like consideration is actually put into the design and layout.