This is what BG3 fucks up in my opinion. Occasionally places will be created where you can't go to camp for a long rest, but usually you can leave and come back trivially. There's almost no need to save spell slots. You can easily long rest after every encounter and just blow all your slots as soon as possible. I enjoyed playing it how tabletop is played. You actually need to manage your slots. If you decide to just long rest somewhere dangerous you're probably going to have some kind of encounter in your sleep, and your armor won't be equipped and it takes time to put on.

Sadly, BG3 doesn't have a dungeon master to see you cheesing something and counter it. I agree the best part of D&D comes from managing resources and making do when you're running low. The fear after you've blown all your spells after a big fight and need to get to safety with low HP is when there's the most tension. It makes for good storytelling.