Realize the phrasing may have been confusing - I'm talking about regular Ubers, not self-driving.
My quote was from a person internal to Uber. Below is a TC article citing a public report on US Data. Numbers in that are roughly 50/year, or a fatality in America every week. Every day may have been a stretch, but I'd guess you could deduce that Uber drivers worldwide are involved in a fatality accident at least every day.
*also - this is obviously a lower rate than non-Uber drivers per mile
https://techcrunch.com/2019/12/05/ubers-fatal-accident-tally...