Would recommend the X-Tx range over the X-Ex range, as they have an ISO dial on the top at the cost of being slightly bigger and heavier. I have an X-T2 and it's great, but obviously the X-T4 etc will have more features.
One BIG caveat with Fuji though is that the X range use an APS-C sensor instead of full frame, so if you get into vintage lenses (really good fun) your effective focal length is times by 1.5. Your nifty fifty becomes a 75mm because it is making an image too big for the sensor (so it's cropped).
Another thing to note - if you do shoot RAW (I would highly recommend this for maximum post-processing fun), you won't benefit from the camera's film simulation profiles as it isn't handling the render (to JPEG). However, all is not lost. All of these color profiles are embedded into the RAW file (I think that's how it works) so that whatever software you are using (Lightroom, Capture One, etc) can pick them up and select the profile you shot in to render it when you import the photos (on LR it's like a dropdown in the settings somewhere). It is quite cool to shoot in black and white, and then surprise people with being able to switch the colours back on :)
The profiles aren't EXACTLY accurate to the onboard processing, though for me it's good enough. However if you do want to shoot raw and get the perfect film simulation Fuji provides a tool: https://fujifilm-x.com/en-gb/support/download/software/x-raw... which uses the camera's onboard chip to do the processing at your convenience.
They also have the GFX series which are medium format, take absolutely silly quality pictures, and have the price tag you might expect attached.