I would call the difference between PS3 and PS4 just a bump in CPU/GPU there is a huge difference. The PS3 cpu architecture is completely different from the PS4. The PS3 uses a custom PowerPC architecture. The PS3 can be used to make super computers.

https://www.theverge.com/2019/12/3/20984028/playstation-supercomputer-ps3-umass-dartmouth-astrophysics-25th-anniversary

At the same time, gaming consoles were simplifying, making them less useful to science. The PlayStation 4 outsold both the original PlayStation and the Wii nearing the best-selling status currently held by the PS2. But for researchers, it was nearly useless. Like the slimmer version of the PlayStation 3 released before it, the PS4 can’t easily be turned into a cog for a supercomputing machine. “There’s nothing novel about the PlayStation 4, it’s just a regular old PC,” Khanna says. “We weren’t really motivated to do anything with the PlayStation 4.”

Long live Proxmox.

Steam Deck is one of them best things ever created. It is a great way to market Linux to masses, this is the same way Windows gained its market cap. Windows made its dominance by being the default operating system for most PCs, normal users don’t know how to install operating systems, and probably don’t even know Linux exists.