I hope someone who's actually been through this will comment and correct any of my misstatements.
I did read something recently from a few different sources that suggested some forms of hair removal (such as tweezing) can make electro more difficult, because they risk deforming follicles and such. I don't know whether that applies to waxing or not.
Though I do seem to recall some long ago discussions that suggested, where a male-type beard area is concerned, that methods that women can typically use without trouble, really can't be done on that more robust set of follicles generated by testosterone exposure. In some cases, practices related to treating the effects of PCOS might also apply to us, though? Something tells me if waxing works at all on a male-type beard, it's likely to be really, really painful. I've epilated most other areas of my body but I wouldn't even try it on my relatively mild beard jaw and upper lip.
Probably good to check with the person you'll be going to, and maybe check other sources online (or more directly) to see whether there's any disagreement, and if there is, what the reason might be for varying points of views on that. I really just want to be cautious, especially with anything where there's a risk of damage, either at deeper levels, or where there could be long term cosmetic problems resulting from making a hasty decision, based on just one person's assumptions and training.