I’m in a similar boat, though my current GPU (1050Ti) probably isn’t up to much beyond lighter/2D titles (due to overhead) and those files are a bit heavy/messy to manage.
I actually have 2 PS3s (my YLoD original w/drive donated to other, a slightly newer model that might have dry paste). Would be nice if I had someone to help with this (my OG has stuff on it*), then again I could do some of it myself I just am not bothering to do so. I did play through a few of my old games as-is on the newer PS3.
* including LBP1 water DLC that was discontinued and wasn’t included w/GotYE. Though due to storage constraints and lack of planning it’s very possible there’s media I purchased that I deleted at some point
Basic: .ogg / .opus support? MIDI player?
Advanced: Godot games, programming target?
This is also the sort of thing I could see having an OLED for longer battery life (+always-on info) not that I could justify the price. I don’t even really need a second portable device (and my headphones situation isn’t good either).
Maybe the sort of device I’m wanting is unlikely to exist, especially with some sort of battery compartment at this size and in this-day-and-age.