Technically, quantum refers to physics at the atomic / subatomic scale, and not necessarily to the spooky effects like particle wave duality and such that we usually attribute to the term.
So, I believe this would be an "effect on the quantum level," even if it can be understood through the lens of more traditional electromagnetic physics as well.
So, I believe this would be an "effect on the quantum level," even if it can be understood through the lens of more traditional electromagnetic physics as well.