I'd say, as is typical, the fancy 'bespoke features' and marketing checkpoints of the consoles fell flat and if they weren't present or were dumbed down, we wouldn't even notice. There's no incredible, world changing audio from the Tempest Engine. The SSD was overkill. How much difference does DS5's haptics really make? VRS doesn't make much difference.
The only real impactful aspects were at the OS level like Quick Resume.
Grab an off-the-shelf part with zero customisation, write a lean, kick-arse OS with no pointless bloat (yes, I'm expecting AI assistants in the next consoles - "PlayStation; help me beat this boss"

), get some great upscaling tech and basically software software software, you'll have the best, most economical console for what people will actually use. The only meaningful hardware would be something outlandish like HBM.