pacman About the cachyOS vs EndeavourOS... Look at distrowatch. Everyone is switching to cachyos, because their distro is just good. It works, it's optimized, and has great documentation and you can choose whatever window manager you want with ease at the installation page. It's just great. But if you know what you want, either are fine. The only advantage cachy has are it's precompiled optimized packages, especially the kernel, but you can't use those kernels on the PS4. Endeavour is also great because it offers a GUI package manager out of the box, which isn't present on cachy... maybe you can install it manually? Idk
About the GPU... Well let's be honest, Intel isn't better either, their GPU percentage shows 0% even on a normal computer because it just sucks. Rmember that Linux on the PS4 isn't perfect and there's rought edges all over because it's hard to develop for a console.
