Most people recommend to carry a tube just in case you get something that you can't plug. We had this happen on a recent gravel ride; oddly enough, it was a guy on MTB. Unfortunately, he ended up walking for awhile until one of us got back and picked him up with the car.
If you get a really bad hole, you can also use a wrapper or dollar inside the tire to cover the hole and it'll hold until you get home. FWIW, my gravel bike didn't like getting set up tubeless, so I'm still running tubes there.
Speaking of bikes, I might be in Ft Worth in October; my tradition for work trips is to bring my bike and ride a couple days after the trip is done. Are there some good places to ride out there?