Fujifilm xt100 still good ?

The X100T is a great compact, fixed-lens camera. The OVF emulates a true rangefinder experience.[1] Using the OVF one can compose while observing what's outside the frame.[2].

The silver version has an advantage for candid photography. The leaf shutter is whisper quiet. You have a quiet shutter without the banding and motion artifacts that can plague rolling electronic shutters. People don't take any silver X100 seriously because of it's diminutive size. I have used them in venues that prohibited the use of DLSRs. I think security assumed it was a film camera.

In very low light I prefer to render raw files in B&W. I usually don't render color raw at ISO parameters above 800. I have no knowledge about in-camera JPEGs.

The X100 and X100T lenses do not perform well at extremely close subject to lens distances at apertures below F4. I don't know if this is the case for the X100T and V lenses.

The infamous X-Trans worm issue is almost always overstated. These artifacts are not an issue (especially in prints) in Lightroom Classic when sharpening parameters are set to 0 or atypically low. The X-100T pixel area is larger than most Bayer12 MP sensors and raw rendering requires very little, if any sharpening. What you observe with pixel peeping rarely appears in prints.

I think the X100T has two disadvantages compared to the F and V. Color signal-to-noise ratio in low light and significantly less cropping flexibility in post-production. This is not a camera for people who prefer to compose by cropping during post-production rendering instead of optimizing composition in real time before pressing the shutter. (Which brings us back to the advantage of having an OVF).