Are you really missing your old games that you used to play on PS1 or PS2 or PS3 as using PS4 now., but not to worry, you can still enjoy playing all games on PS4 using backwards compatibility. To know how to use PS Plus to PS3 games on PS4 and how to download it
source https://99-networks.com/play-ps1-ps2-ps3-games-on-ps4-backwards-compatibility/