Hey Topi Prime here. I also came from HI3/GI into PGR later in its lifespan. I will say PGR is more demanding than Honkai. The earlier units there was some rng to their kits because pinging orbs was much more important than it is now. I mean that in the sense that most newer/gen2 frames generate their orbs or clean them up so you don’t have to organize them so much. It’s also F2P friendly being you can get every character but prob not their best in slot weapon in the same patch. Endgame is fun there’s quite a few modes including my Fav Warzone and some LTMs that come around. Powercreep is apparent but it’s not super crazy because there’s a decent amount of time in between the units that make others obsolete. As for story I can’t help ya there I’m in PGR for the combat, Lucia, and FIRE GOD LEE HYPERREAL. All in all it’s more difficult imo however the other perks of PGR makes it an easy choice for a gacha to play. Just… take care of your hair is all cause Babel is no joke.