PS2 games were generally SD resolution, the console and some titles support up to 1080i.
PS3 games were generally ~720p resolution, the console and some titles support up to 1080p.
PS4 games were generally ~1080p resolution, the console and some titles support up to 4K with the release of PS4 Pro.
PS5 games are generally ~1440p resolution, the console and some titles support up to 4K.
PS5 Pro games might be generally ~2160p resolution, the console and some titles might support up to 8K.
Why is this trend so difficult for people to follow. When the box says "8K", it doesn't mean Call of Duty or Spider-Man are going to be rendering at 7680x4320.