Is fujifilm g a good system to buy into?

Here is what the site says about that.

From Fujifilm X-T4: Fujifilm X-T4: A mirrorless camera by Fujifilm with a 26.1-megapixel APS-C sensor, announced in 2020. The first X-T with stabilisation and a fully articulating screen; a strong used buy.

From Fujifilm G: Fujifilm G: Fujifilm's medium format mount for the GFX cameras: a sensor about 1.7 times the area of full frame. Many full-frame lenses adapt, though not all cover the larger sensor.

Quoted from this site's pages.