Not only the X-Trans sensor is a unique feature of Fujifilm's X-Series, but the control concept with many dials also appeals to photographers who like to keep full control.
The Fujifilm X-T3 achieves the highest speed with UHS-II memory cards, but these are not necessary at all. Filmmakers should, however, pay attention to a V60 (or higher) classification. Otherwise 4K-Video with All-I compression may interrupt. Corresponding cards are marked with an -label.