What another car/BMS system does is educational, but only tells us that Battery-Cell Equilization is considered to be important to that car's designer.
There are some who claim (for their purposes/batteries) that cell-ballancing is not necessary.
I think it is necessary, in any real system expected to be in use for years.
It does not tell us what the LEAF does for Battery Management.
From the LEAF Service Manual, we have a reasonable guess about the LEAF's Equalization strategy: Top-Equalize by discharging selected "higher" cells for a while, then (at least in some curcumstances) "sip" a little e-fuel to top-up.
However, we do not (yet) know WHEN (or under what conditions) the LEAF does an Equilization cycle.
If it is ONLY done after a 100% charge, then ALWAYS charging to 80% would NEVER Equalize.
Somebody who can watch/plot their charging or battery current, for at least an hour after the "normal" charging is complete, will begin to tell us WHEN the "sipping" is done.
Using the (slightly-modified) SOC-Meter (and a PC) as a EV-CAN buss logger, should allow us to Log and graph Battery Pack Current.
See SOC/GID-Meter and CAN-Do Info
2011 LEAF, 2014 Tesla S85
2018 & 2019 Tesla Model 3
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