We don't have transmission studies for oral hsv1, unfortunately. We do have shedding info though.
Shedding rates: (and you can find all this in the herpes handbook - https://westoverheights.com/herpes/the-updated-herpes-handbook/)
HSV 2 genital 15-30% of days evaluated
HSV 1 genital 3-5% of days evaluated
New studies have shown that after having ghsv1 for more than 2 years, you're probably shedding it about 4 days per year. Chances of you transmitting from your genitals are essentially zero.
With oral hsv1, which you don't know you have, and can't know unless you get an oral outbreak, you could transmit that to someone who doesn't have hsv1 already. It's not something I'd overly worry about, with the exception of babies. Just don't kiss them on the mouth, which is good advice for anyone, since their little immune systems aren't strong enough to fight off things we can. (If you have a baby, your baby will have your antibodies for the first 6 months or so, but we really shouldn't be kissing other people's babies on the mouth. Right now, we don't need to be kissing anyone on the mouth unless they are close enough to us that we wouldn't be wearing a mask around them or getting within 6 ft/2 meters.)
Did this answer your questions, at least kind of?
HSV 1 oral 25% of days evaluated
HSV 2 oral 1% of days evaluated
How do you know you have it in both areas?