Hi! Yes, the mdb package supports FA in version 6. If you use the FA 7 version you may encounter some minor issues like this one.

For some components you can still try to make it work with the FA 7 though. For example the carousel:

1. Hide our default icons

.carousel-control-next-icon::after {
  display: none;
}
.carousel-control-prev-icon::after {
  display: none;
}

1. Include FA7 icon in the controls

<button
  class="carousel-control-prev"
  type="button"
  data-mdb-target="#carouselBasicExample"
  data-mdb-slide="prev"
>
  <span class="carousel-control-prev-icon" aria-hidden="true"
    ><i class="fa-solid fa-chevron-left"></i
  ></span>
  <span class="visually-hidden">Previous</span>
</button>

Best Regards!