True there is no way to tell if people really notice or not unless you ask them. But you cannot just "don't count them".
If someone noticed, I'd rather them tell me about it so I can some how refute them / give an excuse. But the worry is people who do notice and start coming up with their own conjectures and talk behind your back. Socially which is more 'dangerous', you tell me. Pretending that this won't happen is not really a good idea though there isn't really much you can do. but at least don't pretend that "because no one said means it doesn't exist".
Realistically speaking, 14cm is very noticeable. It's most likely that people notice it and they found it awkward to ask/mention it. I wore lifts for a good 2 years for about 5cm. When I confessed to my closer friends about it they were like "oh we knew" and that was a good 70% of the time. So yeah, people know, they are just being kind enough to not call you out. And that was a mere 5cm. You can't hide 14cm.
I think undergoing a body composition change helps to hide LL better. Because attention will be drawn to the fact that you slimmed down a lot (or became more muscular). That makes it slightly more believable and I think it helps at height gains of 5-8cm but definitely not 14. LOL.
Still, no one said anything != no one noticed. You can't assume it that way. There is no way to find out unless you ask everyone (which you shouldn't) but it sometimes easier to just assume people are going to notice whether you like it or not.
Btw congrats on the muscle gains and weight loss!