With the state of software development today, I'd be more worried about how many other holes they've added in the process of fixing something or introducing unwanted new "features"[1].
Here's some interesting statistics to look at and compare...
https://www.cvedetails.com/product/462/Microsoft-Windows-98s... - 30 RCEs in 7 years
https://www.cvedetails.com/product/739/Microsoft-Windows-Xp.... - 276 RCEs in 20 years
https://www.cvedetails.com/product/32238/Microsoft-Windows-1... - 664 RCEs in 8 years
https://www.cvedetails.com/product/102217/Microsoft-Windows-... - 157 RCEs in 2 years
More relevantly:
https://www.cvedetails.com/version-list/1224/19997/1/Google-...