I’ve got a few

1. Pi 4 with a 1tb SSD for my proxmox backups
2. Octopi for 3d printer
3. One running as a Spotify connect client for some “dumb” bose speakers in the lounge

The Pi 2 only supports 32 bit operating systems while the Pi 3 and newer support 64 bit (aarch64) operating systems which is likely why they’ve separated the images.