There’s a disconnect there though. People have dedicated their time to this, and without at least a decent amount of depth it wouldn’t be able up keep their attention that long. If you’re not able to find the depth, or it’s just not your style of game, that’s totally fine. But clearly many people have.
Look at corvette building, as an example. If you just take it as surface level, you can bust out a ship and come up with a pretty okay design in an hour or 2. So that a few times and you’ve pretty much done everything you can. However, if you start messing around with glitch building and really diving into the excitement of recreating your favorite ships from sci-fi, or just seeing how far you can push things, you can spend dozens upon dozens of hours just building ships.
This same thing goes for base building, farm building, settlement development. And this is all on top of the story, expeditions, daily quests, etc. So yeah, it’s a sandbox game without one specific thing driving it, but that’s what a LOT of people really like about the game (including myself).



And that’s great! Me personally, I enjoy that I have all of those things in a single game that has a really cool setting that I enjoy. I can hop from one thing to another to another, or intermingle them as much as I’d like. You prefer to have immeasurable depth in each of your areas, preferring specialized games instead of a more generalized yet vast experience.
That doesn’t mean NMS is a bad game. It just means it’s not your game, and that’s totally fine. I have zero interest in any of the games you mentioned, but I still see the appeal to them and accept that they’re probably great games in their own right.