Oh NO please stop with all these rules that will break the game even more.
Ready, dodge, grab, shove to prone and feint/distract (RAW help action). These are actions that lacks in BG3 and that could give a bit more variety if necessary.
Don't play a fighter if you don't like to play a fighter or play a battlemaster. Pick a rogue, a ranger, a cleric, a paladin, a barbarian, a monk, a druid or any other class that can be melee builded if you want a melee character that have more buttons to click on.
Larian just doesn't understand at all why some players like the simplicity of fighters and they're obviously unable to add new things that won't break the game.
Don't give them any value because they call a class they just don't like "a tutorial class". Their design decisions make the fighter way less interresting. Not DnD, whatever Swen can say.
Definitely +1
