We have information in options for our users such as "Real Name" - see attached screenshot.
The red is the ones we actively have.
The green (where the arrow is pointing to) is where we'd like the Real Name to be added to.
Not to mean any disrespect, but I figured it out on my own. Suggesting to look at some FAQs and sifting through pages to find some solution to an answer is not very helpful (I know it sounds and probably is helpful to someone who is new to programming/coding/Xenforo). I know you mean well about it when people use your guides and search the FAQs, but when time is valuable, a quick answer helps. While my post count might be low, I have been coding for 15 years (using vBulletin for most of it).
Having said that, if anyone else has this issue, here is what helped me (since I am one to assist others).
I tested a snippet in one template (for postbit) and then in the profile, which worked.