What made Bethesda Game Studios' previous titles enjoyable was the explorable world full of rich content. The player would bounce around truly interesting locations. Large dungeons with puzzles, traps, and bosses. A ferocious monster. An NPC with a sidequest. A vampire den. A fortress and so on. The world was dense with these things.
Starfield replaces this with randomly generated barren areas of landscape. Amongst this landscape will be some 'points of interest', but these are very simple locations, such as a very small cave with nothing of interest, or a recycled asset such as a pirate base or some outpost. The pirate base or outpost itself is not randomly generated, instead you will see these same recycled assets again and again across many different planets. This, for me, is so immersion breaking and makes the exploration feel so pointless, that it is inexcusable. The core of what makes such a game good is gone, and Bethesda is not very good at any other aspects of games.
There's still something here for many people, and perhaps many people will enjoy it. The combat is quite satisfying, by Bethesda standards, the questlines of previous games are still here, though they're nothing special.
But I can't get past a game that has spent a decade in development and then I travel to many different planets and in 30 hours of playing I see the same few locations dozens of times with the same people standing in the same locations and the same items of trash in the same corners of the same room on different planets.