First game is still good. 2 is mostly an upgrade (a bit more RPG-y, with more varied maps and content). Both give a similar experience though, I would say.
I’ve played 40 hours or so of 2, and have beaten what I understand as a majority of content. It does kinda run like shit on many PCs. I can run many modern games on at least high/medium 60FPS usually on my older PC, but this one is low/medium and I’m lucky if I get 30 FPS in intense combat situations.
Remnant 1 may be a good call while they polish up and fix performance/gameplay issues with 2.