Like others have stated, it happens and can happen to any brand make or model. All industries are subject.
I have had my X-T5 for 2 months and it is perfect. I come from Canon FF both EF and RF and Nikon for analog, all companies and segments with incredibly high QC rates. This Fuji is the same, from mechanical to software, top marks.
If you look for negative reviews, you will find them. Complainers are 10x more likely to voice an opinion than those satisfied.