I only played a few hours on my Steam Deck (because it would freeze on my PC), but what I saw was slightly disappointing. The game looks great, even on the Steam Deck with FSR blurring everything, the gun mechanics are fun, the character animations are the best I've ever seen from this studio. The performance is also very good on the Deck, with stable ~~60FPS~~ 30FPS (edit: when I wrote this initially I was just eyeballing it, but didn't bother to check that Steam capped the frame rate to 30 by default lol, so it was actually 30 and not 60...my bad) in indoor scenes and playable sub-30 in large outdoor areas.

...but the exploration. Man, Bethesda is known for their exploration, yet the spaceship is a gimmick at best. To be fair, I haven't played enough to get familiar with everything yet, but I don't expect that part to get much better. The game feels like Fallout, except instead of having a giant seamless open world to explore, you have a giant open world with tedious transitions between different areas. Maybe it'll grow on me, but it's not at all what I was expecting.

EDIT: update after playing some more.

The game definitely grew on me! The exploration is still shitty, but everything else makes up for it. I'm at ~9 hours on my Steam Deck, and even with all the FSR blurring I'm enjoying it a lot. I started doing a side quest collecting on bad debts for a bank, and during one of them I found a mission terminal on Mars offering a reward to anyone who surveys a distant planet, and on my way to the planet I picked up a distress call from a settler asking for help to fight off a bunch of pirates, and stumbled upon a drama between 3 settler families, then hijacked a pirate ship and found some "sentient AI" contraband inside and then... I went to sleep because it was late.

So in short, it definitely feels like a typical Bethesda game, but in a good way. Just side quests on top of side quests, but with less bugs.

The ship combat is still bland. I found it very easy. Idk if it's because it's early in the game, but no enemy has even gotten close to killing me, even when it's 3 on 1 and we're using the exact same unmodified ship. On the one hand, that's boring, but on the other hand I appreciate not having to spend a lot of time in ship combat. However, now that I discovered how to board and hijack a ship, the combat is slightly more interesting.

And again, I did all of this on Steam Deck, with the only performance issue being on Mars and New Atlantis, which are both big cities/hub areas. It was still playable, but a blurry FSR mess. I disabled FSR because I hate the blurring, and it dropped the FPS pretty hard. Luckily, I didn't have to spend a lot of time in those locations.