I am really skeptical about the UA uniqueness fraction. I am on the latest version of Chrome on Windows and it claims that 0.17% of the people visiting the site

I am really skeptical about the UA uniqueness fraction. I am on the latest version of Chrome on Windows and it claims that 0.17% of the people visiting the site have the same UA string. Mine is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/79.0.3945.130 Safari/537.36 for what it's worth. Can it really be that only two in a thousand people visiting the site in the last seven days have the latest version of Chrome? Or does Chrome just update so often that very few people tend to have the same version at any one time. (If the latter, that suggests that maybe it's not a very strong tracking signal.) It seems more likely to me that the data is just stale but I guess I don't know much about the true distribution of Chrome useragents.