I'm daily driving it. Well, daily driving every other day. I have a few machines, so I'm not restricted to one OS, and I tend to use the one I feel most comfortable with. Right now, I'm using this machine the most.

What daily driving involves for me is mainly web and gemini browsing, some media playback, word processing, and some light gaming (although I am yet to install any games on this machine).

The reasons I chose OpenBSD are:

• Security - If it's the most secure OS, I should probably be running it in some capacity. It'll also impress people when I bring it to my first lecture in uni (I'll be studying cybersecurity).
• Learning - It's a different land with different rules, and I'm hungry for knowledge. Learning OpenBSD is the next logical step after I got to grips with FreeBSD.
• Performance - Surprisingly, I'm finding that OpenBSD actually runs faster and has vastly superior battery life than when I was running Linux or FreeBSD. However, as I said before, I haven't yet tried gaming on it.
• unix_surrealism - I'd say that this comic was part of the reason I went for OpenBSD and not Linux or something like Haiku.

Additionally, you mentioned FreeBSD. I think it's worth noting that, while two different Linux distributions can be very similar and cross-compatible, it's a different story with BSD.

Unlike Linux, the BSDs are all more-or-less hard forks of one another. FreeBSD and NetBSD were forked from 386BSD back in the '90s, which was based on the original BSD from the '80s. OpenBSD was then forked from NetBSD 1.0, and DragonFly BSD was forked trom FreeBSD 4.8. Today, the big four BSDs (Free, Open, Net, and DragonFly) are very different from one another and not entirely cross-compatible compatible.