I've heard that the soldering temperatures aren't nearly enough to make the lead a gas and the fumes from the flux are what can kill you. I suppose the same advice applies in that case, but is that accurate?
Lead does bioaccumulate so continual exposure to low levels is dangerous, but unless you’re soldering all day every day it’s not likely to be dangerous.
If you’re a factory and have multiple wave soldering baths operating it’s a different story.
I mentioned it for completeness because someone else would if I didn’t.
I use Канифоль/rosin flux as well and use a fume extractor. Rosin flux is the most common for flux-cored solder in my experience.
But a few times a year is unlikely to be an issue, soldering health effects are in people who do it for work.