I strongly dislike the new balancing that makes each level-up such a significant jump in power.
The original implementation wasn't without flaws, but those flaws could have been fixed without breaking everything else.
I feel like D:OS2 would benefit from a gear/loot rework that brings it closer to the original Falouts(1/2) and D&D games: practically everything is handplaced and the variety of gear is quite low, but every new item type is a practically significant change(damage type, ammo used, etc.) and straight upgrades are only given out relatively scarcely, often making it more worthwhile to stick to the old item if the new one is of a type you can't use effectively.