Conversely, I tried running openbsd as a router on my ubiquiti edgerouter for my 950 megabit up/down connection and couldn't get even close to the performance of even the shitty ISP-provided router/ONT combo box.
I'm mostly over BSD in general. I don't know why, given that Debian exists and performs much better, I'd reach for BSD unless it had support for some esoteric hardware that Linux doesn't support.