I read this and this related questions to use multiple references to the same footnote, but those suggested solutions don't work in class komacv. It can also be my fault.
I used footmisc in my MWE:
In the most recent version I stumbled upon a small error that is maybe not so hard to fix, but I am unable to do it.
When setting the option style=casual
This gets passed down to (I think) hyperref ...
In the most recent version of fontawesome5 when used with komacv, for example with a try of an MWE