Steam is wrong, you don't NEED an SSD to run this game however you do need a SSD to run Fuckpunk after the lastest patch so that will be the page they copy pasted from
to be clear, a SSD is normally better so its a good idea but no not needed
The problem is we don't know what the non-SSD Bg3 experience is like and I don't want to take responsibility for steering someone wrong so I have been unequivocal in my messaging in regards for the need for an SSD.
The most recent PSA even goes as far as mentioning it which tells me this game is really optimized for an SSD.
https://store.steampowered.com/news/app/1086940/view/3655285941429712390I honestly think they can expect a fairly frustrating experience in Baldur's Gate the city without an SSD. Given how beefy the rest of the requirements are this doesn't seem like such a big deal.