There are two logical choices, with different logic for each.

The least wearing cycle would be something like 46-54% (though below 80% the difference is minimal.)

The downside to that is from about 20% to about 80% the voltage is constant, so the only way the car knows how much charge is in the battery is a math model based on power flows in and out - and those models can get confused or drift over time.

Which leads to the other logical choice - charge to 90% and don’t worry about it.

That’s Tesla’s official recommendation these days, and I’m pretty sure they recommend that because it gives the math models something to work with - the cell voltage is slightly above the constant range, in an area where voltage corresponds quite consistently with state of charge, and the wear on the pack is only slightly greater.

I use around ten percent per day and take a lot of longer trips that aren’t really planned, so I picked something in the middle. I charge to 80% on a daily basis, and to 90% on trips and if the 80% number moves much (and I have seen it change by several miles and come back when I charge to 90%.)