A few relevant sources to check out if you’re interested: this Daily Beast article pulls no punches on the choice of a Uighur athlete to light the Olympic flame. “Gaslighting the world” gets it about right. The practice of organ harvesting sounds far-fetched and feels impolite to mention, but is alas well-documented by credible organizations such as the UN’s Office of the High Commissioner for Human Rights. This NBC News article from 2019 headlined “China forcefully harvests organs from detainees, tribunal concludes” is also rather unambiguous.
As far as forced labor is concerned, the IOC has “failed to offer credible evidence that there are no products made with forced labour in the thousands of items of Olympic-branded merchandise sold or worn in connection with the Beijing Winter Games” according to the Coalition to End Forced Labour in the Uyghur Region.