I've read that 80% stuff is bullshit & you can hit 90-95% consistently no problem - same degradation schedule.
I've also read that the bottom is more like 10-15%.
~125mi of not pushing it to the limits range.
Discussion
Cordless power tools have had those restrictions in the past. Some have a problem where you have to fully drain and then fully charge on the first use for full capacity. Most of that stuff is no longer an issue either from fixing it or all the computer controls in them. Surly the EVs have computers that manage that stuff like tool and phone batteries.
Modern batteries are built to cycle a certain number of times.
Testing the upper limit 100% of the time could lead to faster degradation, but that fear is so overblown.
Charge to 90-95%, 100% if you're doing a long distance ride.