I always use the external battery charger for my X-T3. Plugging a charging cable into the camera itself feels incredibly cumbersome? I'm supposed to put my camera on the floor somewhere near a wall socket for a few hours while the battery charges? What if I've got multiple batteries and I want to use the camera while one battery charges? What if there's a short circuit and it fries the camera?

Give me a dedicated external charger any day of the week! Anyway I'm happy with the firmware upgrades the X-T3 received so far, bringing it up to the same AF performance level of the X-T4. Fujifilm has always spent it's firmware update efforts mainly on the X-T* range, all other bodies (x-pro, x-e, X-T*, x100) typically get abandoned shortly after release.