I know I bitched about the Necramech grind earlier in the thread but I am starting to feel like forcing progression in each of the hub areas would have felt better than just opening them up and letting you leave immediately. I had to go back for so many things that I never realized I skipped and it really felt like it was halting my progression rather than fueling it.
As an example, I did the Angels of Zariman quest and about an hour later I was doing the intro to 1999. Nothing in Zariman progressed, a feeling that is further driven by everyone saying "just unlock the star chart first" and now I regret it. There were months or years inbetween these content drops and being forced through some while skipping others has led to a stunted development.
Now I have The Hex available but I don't even have a single incarnon weapon (or really understand what they are or how to get them). Nor have I compelted an Archon Hunt or a Sortie, etc...
Hell I still don't even understand the appeal of a Kitgun/Zaw or why the fuck I would ever want to make one other than MR.
Imo it's better to rush to the end, and then work on unlocking stuff you need/want to do, rather than force yourself to do old content that is potentially not very relevant or interesting anyway. Like the open world bounties on Earth are atrocious, and there's very little you need from them either. Same for Fortuna on Venus(although this one is more useful cause it unlocks Profit Taker but even that is super optional as you can farm credits in other places).
Sure if you did the Holdfast grind first you'd know what Incarnons are, but also does it matter? You'll learn what incarnons are when you do it, or by looking it up on the wiki, but they don't have an important place in the lore or anything like that, they're just a special category of weapons.
Same for Zaw/Kitguns. Let's say you decide you want to make one before you progress. You have to spend several days grinding bounties there to get the rep to make your first weapon. The lower components aren't necessarily the best, and there's no explanation of how each part affects the final result if you don't check the wiki. You make a weapon and it's likely better than the garbage one you were using, but not significantly so. And... that's it. To get deeper into it you need to look at the wiki and guides to figure out the best combinations, and even then since they're old they're not really super relevant anymore compared to more modern options(like incarnons). The worst incarnon is better than the best zaw in almost every condition. Most Kuva and Tenet weapons are also better. So what did you miss not making a Zaw when you unlocked the place, forcing yourself to farm terrible open world bounties for days just to get a weapon that's not even really good. Nothing really. You will want to do them eventually anyway for mastery rank, but there was no reason to stop and grind outdated stuff right as it unlocked.
Instead once you clear the story, you can pick what looks the most appealing. Want the strongest weapons? Check how to get incarnons, then do it. Want to get nice arcanes or mods? Check the popular builds for your frame, see where each thing is obtain and grind them. Want to get a different frame? Check a video on how they play to get an idea of which one to get then figure out how to get it. A large part of finding out stuff in this game however is the wiki, the ingame codex is barely useable for anything(and they made massive improvements to it in 1999) and a lot of system are super convoluted with reward rotations and shit like that.
You don't NEED to do any of the content like archon hunt or sorties, you do them if you need something for them or have time to spare for them.