1-Yes and no, I mean affinity is a bit complicated so maybe making a more easy to understand system.
2-No, unless it is only x character marrying y and there is no other possible s support then no, canon ships>>>>>>all
3-In a base or camp, SoV stiled is rly strange and awkward like you are in the middle of the battlefield and then u start talking and the enemy just stands like wtf
4-Full voice acting, it can be less quantity but voice acting is really good especially to understand more how x character reacts, even if it means less in depth conversations it seems much more worth it + if fe starts being always full va then probs it starts getting larger supports again
5-Pls dont