IIRC, the PS2 did not download game updates or patches from the internet. The game on the disk was what you played. As long as you had a PS2 and the disk, you could play the exact game you played so many years ago.
With the PS5, the disk is more or less a key that lets the console download the game. Having the console and the disk is a guarantee of nothing in the future other than you can probably play the buggy mess that they packaged up way before the game was done.
With the PS5, the disk is more or less a key that lets the console download the game. Having the console and the disk is a guarantee of nothing in the future other than you can probably play the buggy mess that they packaged up way before the game was done.