I would still avoid 100% or high SoC on a regular basis unless it's really needed. I've pointed to this person who was down 7 capacity bars (5 remaining) by Dec 2017 on his '11 Leaf, despite the super mild PNW climate: https://mynissanleaf.com/viewtopic.php?p=552809#p552809.
Yes, the chemistry on pre-4/2013 Leafs was crap, but his charging habits didn't do him any favors. I suspect if he took better care, by that point, he'd only be down maybe 3 or 4 bars, not 7.
This person with a 1/2013 built '13 (also bad chemistry) at https://www.mynissanleaf.com/viewtopic.php?t=31297 was down 6 capacity bars by July 2020 in an extremely mild climate. SF does not get hot compared to the rest of the Bay Area at all (example at https://mynissanleaf.com/viewtopic.php?p=533224#p533224). I suspect their car if taken care of better would be a 9 or 10 bar car by that point, not 6. Per https://www.mynissanleaf.com/viewtopic.php?p=587652#p587652, seems like they'd been charging to 100% for years.