What made 2021 unique was the community effort to create widescreen (16:9) and 60fPS patches. Standard PS2 games were designed for 4:3 CRT TVs. Guides in 2021 focused on downloading "pre-patched" ISO torrents that automatically ran in HD widescreen.
The "2021" modifier was crucial. Many old PS2 torrents from 2010 had dead seeds (users sharing files). In 2021, active trackers included: utorrentgamesps2 2021