I got to admit that despite having a lot of OG PS1, Saturn, and Dreamcast games as well as hardware and Retrotink upscale I mostly play them through emulation. Same with the 16-bit era systems.
Playing PS1 games with patches, mods and QoL improvements through Duckstation is like playing on a different console altogether.
Oh, and PSP of course. I have multiple PSP and Vita systems but mostly play PSP games on my Steam Deck, Ally or a PC. Running PSP games with like 4+ upres is a must have.
Sometime I fire up my PS2 or Saturn or Dreamcast (all modded) just because but I really play a lot more through emulation now days.