You’re right. Aside from a few big choice differences and endings, and perhaps playing a different style (a villain instead of a hero, for example), there really isn’t much that you can do to change the feel. All the important beats still have to happen, regardless of how you choose to resolve a situation. And too, a party-based game suffers from most players balancing their crew. That’s not like the solo-character games where you can only have one particular set of skills, class, etc. It really dulls down the replay value.
Having said all that, I really enjoyed my second playthrough; I was more tuned into how I should manage my party and made enough of a change in my choices that it felt somewhat fresh. Since I avoided brawling in my first game, I had Cordite to add something different to the mix (to outstanding results, I must say).
But it’s uninstalled now so that it doesn’t tempt me again someday, what with all the other games out there. Considering I played it off Game Pass, that game alone paid for a full year of subscription based on the hours I sunk into it. Well worth it.