Everyone wants an open world, nonlinear game and hates level based structure. However at the same time most people just do the main quest and maybe just a few side quests. Skyrim forced you to walk everywhere outside of the main holds while starfield is a fast travel simulator. Ironically, the way most people play Skyrim results in the same level based structure. Both games had a shit ton of side stuff to do, but Skyrim forced you to pass that stuff on the way to your objectives, while in starfield you have to consciously go out of your way to find side stuff to do on the map.

TL;DR starfield needs better flight and fuel mechanics to force you to engage in side content and spread out the objectives, and a survival mode.