I have not told anyone directly that I did CLL (even my own wife), the most I have told anyone (when asked directly) is that I had LL for a leg length discrepancy.
I gained 8cm total (171 cm to 179 cm Femur, internal) in my mid 50's, I did unilateral and had some complications so the whole process took 6 years and 4 rods (a Fitbone rod stalled on one leg, and 2 years later I managed to bend a Precice rod on the other leg)!!.
At first (before CLL) i started wearing 6 cm elevator shoes so I appeared ~ 4 cm taller, this was not too much of a gain (and not too painful on my lower back..) and people acclimatized to my new height quickly.
After the 8cm I wore standard ~ 2cm shoes, and then after a year used 2 cm lifts in my shoes.
Some people (friends mostly) have asked me about my height gain over the years, usually this has come from people who have not seen me in years, I tell them my spinal surgery(which I did have 7 years ago) gained me a few cm , and then I had an LLD surgery which gave me another few cm's, they are happy with my explanation, and if not that is their problem.
If I am not asked then I don't give an explanation, it is my business tbh, and if they wanna gossip then that is on them.