My understanding is the more time the LFP battery spends at 100%, the better. In other words you should always charge an LFP car to 100% overnight at home.
(Unless logistics don't allow for it occasionally, then don't sweat it of course.)
The old lighter NCA RWD cars should have a fundamental handling advantage over the dual motor cars. Whether the stock suspension capitalized on that is another story, but if you're super concerned about handling on these cars, you're probably not staying with the stock suspension anyways, it has pretty poor damping and body control when pushed hard (at least 2021 LR and P).
LFP RWD cars are almost as heavy as dual motor cars. Their weight distribution is probably still slightly more rearward than AWD cars, but I doubt it's enough to make much/any real difference. LFP has real advantages over NCA for daily driving but it's strictly worse for handling and performance. Everything's a tradeoff!