Recently got one of these for my X100VI and its great aside from its bulbous front element (no different than the Fuji version, of course). I decided to try my hand at modeling a sleeve to make it a bit more ergonomic. With the TCL and sleeve installed, the X100VI feels very similar to the Leica Q-series.
Here's a link if you want to print one yourself. It's free, of course!
Edit: Updated model, changed the fuzzy skin settings to provide a more matte finish and tweaked the internal dimensions for a better fit. Now includes a rear cap!