This is a little unusual. Most games never explicitly say you need an SSD or a HDD - but Starfield does! This likely isn’t a hard limit, as recommendations are often just that, but I cannot help but wonder what would happen if the game is run on an HDD?
Only other game that I know which has an SSD requirement is star citizen. It’s not really playable with HDD. Then again, it’s not really playable on SSD either, but that’s another can of worms.
Makes sense. It’s time to move on from spinning disks people. SSD’s have been affordable for a very long time now.