"Why BSD?" wasn't the question. I have already read a lot of the arguments about that particular question. If I were to generalize my question to ladyanita22, it would be, "Why would you want to run a BSD for Gnome, Wayland, Steam/Proton, and other generally Linux software, instead of running it directly on Linux where it is supported best?"
What does the user get out of running a BSD for Linux software that they can't get out of Linux? If you prefer BSD, then why not use software that is better tailored for BSD rather than software that requires porting and changing or removing all of the Linux specific bits?
The problem is that software used to be portable and worked well on !linux systems. Little by little majority of important FOSS development is heading towards linux-specific EEE, I feel, and that is setting a dangerous precedent...
As a follow up to add more context. Yes, the hassle of getting GNOME running on NetBSD or FreeBSD or OpenBSD has been more recent. GNOME used to be pretty portable, but then some dependencies on systemd specifics and other 'linuxisms' got injected into GNOME and now patches have to be written where patches didn't have to be written in order to run GNOME on the BSDs.
What does the user get out of running a BSD for Linux software that they can't get out of Linux? If you prefer BSD, then why not use software that is better tailored for BSD rather than software that requires porting and changing or removing all of the Linux specific bits?