I think the parent poster was talikng about BANAL virus discovered in Laos, which apparently is closest to SARS-CoV2, but it doesn't have Furin Cleavage Site.

> The Laos study offers insight into the origins of the pandemic, but there are still missing links, say researchers. For example, the Laos viruses don’t contain the so-called furin cleavage site on the spike protein that further aids the entry of SARS-CoV-2 and other coronaviruses into human cells.

From [1]. So yes, the claim made by the parent poster is patently false.

[1] https://www.nature.com/articles/d41586-021-02596-2