Is true that Microsoft doesn't use products Microsoft in web servers in half the time ?

[françai s]

Probably I'll invest in a distant future maybe in web servers, but I
do not know what to use for this.

In FreeBSD Forums, the user 'deathbyfreezeray' said that "Honestly
when it comes to web servers, even Microsoft doesn't use Microsoft
products half the time. "  reference:
https://forums.freebsd.org/threads/why-do-people-use-freebsd.48396/

Is true that Microsoft doesn't use products Microsoft in web servers
in half the time ?

If is true, what are the products in web servers that the Microsoft
use in half the time?