There are some great third party X mount lenses available for you to use on your Fujifilm cameras.

Recently, Sigma told the world that they would love to make lenses for the Fujifilm X mount platform. Still, because Fujifilm will not play nice and share their algorithms with third parties, Sigma said that they would have to walk away as they do not have the time to reverse engineer Fujifilm’s AF system. You would think that this means that you cannot use or buy third party lenses on your X mount camera, but you would be wrong to think that. You can actually get your hands on some fantastic third party X mount lenses; you just have to know where to look for them. In this roundup, we will share with you a few of our favorite third party X mount lenses.
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https://www.thephoblographer.com/2020/02/19/these-third-party-x-mount-lenses-complement-fujifilms-film-simulations/