I tried FreeBSD as a desktop OS a few years ago, but what killed it for me was lack of (or too complicated for me) support for multiple monitors via a docking station using DisplayLink.

Even under Linux DisplayLink support was a bit iffy, with kernel updates breaking support with frustrating regularity, but that hasn't happened in the last couple of years.

Apparently FreeBSD has had DisplayLink support built into the kernel since 2015[0], and I'm sure I've tried it since then and couldn't get it to work. However it's been at least five years since I tried it last, so maybe I need to try again (although I'm very comfortable with my Linux desktop flow now).

[0]:https://www.phoronix.com/news/FreeBSD-DisplayLink-Support