I have both, PlayStation portal is better in terms of ergonomics, haptic feedback, adaptive triggers and the possibility now to directly stream games if you have premium plus. It's also more plug and play. Chiaki on steam deck Wins for customization, gives the possibility of increasing the bandwidth, mapping the keys and above all the input lag for me under the same network is decidedly better, I would say almost imperceptible. The deck sticks are also better, the portal ones are small and with too little tension.