You know who has control over the the way required/recommended specs are presented for Starfield? Microsoft.
Whilst it's easier for consoles, it's not impossible on PC. When I buy games on Steam, I've found the published specifications for most games a pretty good indicator of what performance I am going to get based on the PC I intend to play the game. There will always be factors that influence real performance, like chipsets, PCI bus speed, RAM speed and the specific clocks of GPU cards, but for the most part you can accurately provide a good target of hardware for people who want to run the game at 720p/30, 1080p/60/120, or 4K/60/120/144.
The available info for Starfield is a bit rubbish, so here's hoping that provide more useful performance information before launch. They have 6-7 weeks to provide some clarity.
Personally, Starfield is the BGS that I have been least anxious about in terms of performance and stability. It looked great running on Series X mid-June and remember that they intended to release in November 2022, so by launch it will have had ten months of extra spit and polish.
IGN's Ryan McCaffrey had an hour-long hands on with Starfied at the Direct, and did a 20 minute interview with Todd Howard, who confirmed that all Bethesda have been doing is playing, tuning, tweaking, improving the UI and fixing bugs. This should be the most solid BGS game ever and Fallout 4 was pretty damn solid at launch for me.
SEVEN WEEKS TO GO!