This is from about 20 years ago.
https://oig.justice.gov/reports/plus/e0410/intro.htm
Five years of shooting incidents with the DOJ (FBI, DEA, ATF, USMS). Mostly Glocks.
Do not know how it compares to time periods before with other types of guns or since with the same guns. Does anybody?
Length of pull, weight of pull, trigger-less take down, SFA, TDA, DAO, manual safety or not, hardware does have a part to play along with the software.
Proving how much better/worse is tough.
Not so bad if you consider that's almost a million trips to the range in that time period?