What are the differences between OpenBSD and Linux?

What are the differences between OpenBSD and Linux?

This list is aimed at people who are used to Linux and are curious about OpenBSD. This cannot be understated: many people are attracted to OpenBSD in the first place because it’s much more minimal than Linux and even FreeBSD. Let’s jump to some of the not-so-nice ramifications of OpenBSD’s philosophy:

Most closed-source Linux software does not work: skype, slack, etc.

Source: cfenollosa.com