Gentoo Linux had more bugs than IE in 2014, 350 to 289 so not even close.
You're comparing an operating system distro to a browser. You do realize that don't you? For a better comparison try Firefox vs IE: 171 vs 289.
In fact as of March this year both Apple and Linux have more bugs than Windows, again by pretty large amounts. For those wanting the figures and don't want to read TFL? OSX is the worst at 147 followed by iOS at 127, Linux at 119, and Windows, which the Linux faithful are always screaming is "full of bugs"? A grand total of...38.