To keep all feedback in one place, I would like to add my suggestions as well:
Conversations: Let the game automatically select the character with the best chance of success for any ability check in conversations for us like the Pathfinder game does.
For example, a conversation leads to a Persuasion check, a Medicine check and a Arcana check and when you hover over these options, the game tells you that each check would be attempted by a different character from your group because each of them is the most proficient in each respective field.
The issue One of the major downsides of turn based combat in RPGs is that the time a player has to wait in order to make his next turn linearly increases with the number of combatants taking part in the encounter. While games that feature real time with pause handle all combatant's turn simultaneously, turn based is at the disadvantage of having to wait several seconds for every single combatant to make his turn one after the other. In the worst case, this can lead to downtimes where the player has nothing to do other than lean back for minutes, waiting when your next turn is.
Suggestion To alleviate this issue and make turn based combat more fluid and engaging I would suggest a system where enemy turns are grouped up based on their turn order and play out simultaneously. So instead of letting multiple individual turns play out, there is one single enemy group turn.
For example: Character A and Character B of your party have both made their turn, now 5 goblins get to make their turn before your characters C and D get to make their turn and finish the round. So instead of having to wait for one goblin after another to make their turn, all 5 simultaneously start moving into position and perform their actions. Instead of having to wait for 5 individual turns to play out, you only have to wait for 1 turn where 5 combatants make their move.
Potential problem of this system The advantage of reducing idle time for the player might come at the cost of losing some overview of what happens during one round of combat. This kind of issue of course is typical for real time with pause combat systems but is normally alleviated by having a detailed combat log where every action can be reviewed in case the player couldn't keep track of everything what happened during a turn.
Potential fix to keep better overview Instead of just letting all enemies between you characters turns run wild and perform all their actions whenever they are ready to do so, the enemy group turn could be segmented into multiple phases.
Phase 1 would be an initial movement phase where enemies, if they need to change their position, do so simultaneously or keep their current position if they don't need to move. After every combatant has reached their position, phase 2 starts. Phase 2 contains all enemies taking their planned action but this time the actions are not performed simultaneously. To keep a better overview all enemy actions play out one after another in the order of their individual position in the initiative queue. The camera focuses on each action and jumps from combatant to combatant. After all enemies have done so, phase 3 starts. Phase 3 is another movement phase, where enemies can spend their movement points in case they haven't done so before or still have movement left which they want to spend. This happens once again simultaneously. This can be followed up by an optional phase 4 where enemies perform a bonus action.
Additional thoughts As there are many different players out there with many different preferences I would suggest to make this system optional, tucked away in the options menu for players to toggle on or off, whether they would like to use this more speedy version of turn based combat or keep the slower but easier to overview system which is currently in the game.
When you talk to a trader to look at his wares, the tooltip of equipment he is selling only refers to the profciencies of the character who initiated the conversation with the trader and clicking through your party member's inventory doesn't adjust the tooltip.
So, for example, you start a trade with a wizard and switch on the trade window to Shadowheart and hover over a shield, the tooltip still says "no proficiency" because the tooltip still refers to the wizard and not to Shadowheart. You have to end the trade and talk to the trader with Shadowheart again for the tooltip to actually show her proficiencies. Same goes with every other member of the party.
When you try to rebind those keys, the game warns you that multiple things would be affected but it won't let you bind the new key you are choosing to those multiple options as well. So if you for example just would like to swap those two keys around, so Tab shows and expands tooltips and Left Alt toggling combat mode and party / character overview, the game simply won't let you do that since the new key is already bound to one of those two things and can't have multiple bindings like it had before.