Stalker 2 suffers from all the same issues as Witcher 3 in terms of open world design, except with higher intensity. They should've cut like 1/3rd of the map, maybe then that what remains would've been more polished.
Once you get further into the game and you're doing quests in the region where there's no trader/guide in a 2km radius you're going to feel it.
At least in Witcher 3 etc you had a horse. Stalker 2 is especially weird in that regard because technically the map is full of landmarks, yet not enough.
I think the main issue is that some areas are just right, when it comes to „density vs desolation”, like Lesser Zone, Swamps, Duga, Red Forest, but they’re all between absolutely miserable shit like Zaton, Wild Island or Burnt Forest that turn this game into running/energy drink addict simulator.