People blame the sunsetting decision, but most people stuck around. Honestly I don't think the stuff they sunset was all that good. The original planet designs were feeling tired. They have brought missions back as well... But it's been too long since I played to remember exactly how they brought them back.

The actual issue in my mind is they've decided making things hard means giving it a lot of health and make it take almost all of yours in one hit. So the only things that are viable are people's cracked builds.

Basically without a full team of good shooter players, even easy mode dungeons are out of reach. Things just do so much damage and have so much health, it's just not fun. Everything feels like a slog unless you go look up a cracked build someone made.

Actually, not everything feels like a slog. The content that doesn't, everything just dies without any challenge.

So the options to play are roughly:

comically easy
this will take forever
this will take forever + 1 and hit like a truck
this will take forever + 2 and you instantly die

With some content having only the last 3 options.

They added some new enemy types recently, but it just hasn't been enough to really make the game feel refreshed. Like, Remnant II showed how to do this well, different enemies, different ways that they attack you, different ways to ideally kill the enemy (i.e. lots of weak spot variety), lots of different attacks for the bosses (and death is a matter of avoiding the attacks not being in a 12 hour fight), every bullet takes a significant chunk of their health bar, etc

The locations have also felt a bit underwhelming, but that would be okay if the fights felt challenging and rewarding ... not just like various reskins of the same enemies with either no or way too much health.