The debate of where modern games start and retro games end has been debated to death, including here. I think we can all agree that the current generation (PS5, Switch, Switch 2, and XB S/X) are all modern, but for me, modern pretty much includes the current gen and previous gen. I know many would argue the 7th gen (PS3, 360, and Wii) aren't retro, but going back and playing almost any game from that time period feels like a time capsule of culture and game design that simply does not exist anymore. It's crazy just how old games from that generation feel now.