But Boeing executives doesn't fly on these, since they're too large for even CEOs. Boeing executives fly on one of the three Boeing owned Bombardier Challenger 650s [1][2][3].
[0] https://en.wikipedia.org/wiki/Boeing_Business_Jet
[1] https://www.planelogger.com/Aircraft/Registration/N541BA/908...
[2] https://www.planelogger.com/Aircraft/Registration/N543BA/908...
[3] https://www.planelogger.com/Aircraft/Registration/N544BA/884...
But it is still poor optics to rarely dog food your own products.
[1] https://qz.com/work/1169517/executives-are-dying-in-private-...
[2] https://fivethirtyeight.com/features/corporate-jets-commerci...
So it's really not a fair comparison and I wouldn't be surprised if they're functionally equivalent after taking into account all major variables.