I will echo most of this and add that, for most who commute a limited amount each day (15-20 miles or so) you really don't even need to charge to 90%. We've found that 50-70% on most of our cars will not only be more than enough but will also enable us to go several days w/o even needing to plug in. It's not a bad idea to get into the habit of plugging it in each time you get home in terms of not forgetting to plug it in one night but if you want to min/max your battery's overall life you can do small things like this to prolong it's lifespan... even if only incrementally. That last part is quite important because we're not talking about any of this making a drastic difference based on newer data that Elon himself has discussed as recent as last year. Don't lose sleep over it and the big take-aways are to not charge to 100% and store it for longer periods fully charged and Superchargers can have a negative impact on the battery lifespan as well but both are going to be small percentages all-told. Everything else I mentioned is even smaller percentages of improvement so don't stress and enjoy never having to go to a gas station again unless it's to get your favorite energy drink or coffee.
Setting those two settings to the exact opposite that you've recommended is one of the first changes when I get into a new Tesla. None of those have ever had the amount of range that the OP's car has either. In my opinion, while there's a minimal amount of energy that you might save from these settings but it adds a noticeable decrease to the ultimate user experience. Some things are just worth the price that you pay to have them and in this case it's a very small price in my opinion. Especially when you're talking about a car with nearly 400 miles of range. It's barely even a drop in the bucket to have these features working to ensure the best user experience possible.
In the "Charge" settings you can adjust the maximum charge via the slider both in the car as well as on the app. Each of the lines you see indicates roughly a 10% decrease in 100% charge down to 50% in the middle.
The battery's enjoy 20%-80% . 90% is creeping in on full charge numbers. If you are planning long trips, charge to 90%-100% and drive off as soon as you can when it has reached max charge, don't let a 100% battery sit at full charge for long, this causes degradation
