No. LFP batteries are just like all other lithium batteries - the lower the average state of charge, the slower they will lose capacity over time (calendar life losses).
@AAKEE has posted numerous references to this. And the more you charge to 100% (especially if you let it sit there), the faster they will lose capacity.
LFP batteries have shown to be very durable when it comes to rapid cycling - but I haven't seen anything that claims that 100% SOC is "healthy" for any lithium battery. In all cases I've seen, 100% is the worst.
Here is a link to a study which looks like 5 different scenarios to model calendar aging - the cells stored at higher states of charge and higher temperatures clearly lose capacity much faster than cells stored at lower states of charge and temperature.
This myth about 100% being OK only came about because of the flat voltage curve of LFP batteries - charging to high SOC regularly is required to help the BMS keep track of each individual cell's SOC. But that doesn't mean you should charge it to 100% and leave it there.