Now it's reached a "peer reviewed" publication, the European Journal of Epidemiology. (For anyone like me who is not in "the biz", there is hardly anything about this on wikipedia, just boilerplate/PR.)

"Increases in COVID-19 are unrelated to levels of vaccination across 68 countries and 2947 counties in the United States"
"At the country-level, there appears to be no discernable relationship between percentage of population fully vaccinated and new COVID-19 cases in the last 7 days (Fig. 1). In fact, the trend line suggests a marginally positive association such that countries with higher percentage of population fully vaccinated have higher COVID-19 cases per 1 million people."

Full article:
https://link.springer.com/article/10.1007/s10654-021-00808-7