So I think to make a thread with this topic is a huge waste because it goes off the assumption of 3 things:

1: The devs have any intention of changing the ruleset away from being 5e based.
2: This new combat system is incapable of allowing the same level of creative approaches as DOS2 given more time, class levels, and new feature implimentation.
3: The rules are too strict and adhere to 5e too much.

This game is an adaptation of a ruleset in a tabletop game. Much like a movie adapts a book or an anime adapts a manga, certain appeals are going to have to be pushed aside to make way for innovative ideas that you will only be able to get through playing this game. When you offer a suggestion or a feedback, you are wasting the dev's time by telling them that the problem is at its core and needs to be reworked entirely instead of going specifically for the details that cause problems directly. The entire first section of your post is meaningless and doesn't give the devs anything useful, only when you start listing off specific shit is anything going to be meaningful feedback.

Also, to say that this game's combat is a downgrade from dos2 combat is entirely subjective. sure you have less flexibility in how you handle your turn, but the tradeoff is that certain classes have many more approaches that they can excel at, and you are fighting an entirely different type of enemy group. In DOS2 most of the time you are fighting a group of enemies with variations of the exact same skills you have because everyone in that game can get a skill book and be bad ass. In this game you fight different creatures with strengths you don't have access to but weaknesses that only you can exploit, and they are facing the same dillemma in fighting you. The different combat systems have different things that they achieve and their own strengths and weaknesses.