The foam option is in the Goodyear, Continental, and Pirelli Tires. The Goodyear and Pirelli have a both a "silent" and regular asymmetric tires for the Model X.
I had the Goodyear, and the tire damaged and was not repairable. The foam on the inside of the Goodyear felt hard and could not be removed, to patch the tire. I was within a few months of replacing the set anyway, so It was not a big deal. I replaced with Pirelli tires (just to gauge the difference). The tire dealer (I've been using for years), said the Pirelli's were repairable in the event of a puncture since the foam liner is softer, and can be burnished off for patching but would require a re-balance (which they would do anyway).
I carry a small pump in the vehicle -- similar to the one Tesla has. I was able to pump the tire up and get home and to the tire store the next day without using the "goop" I am not sure how that stuff affects the pressure sensors. I would highly recommend carrying a 12VDC pump over using sealant. Takes a little more time, but will not ruin the tire or the pressure sensor. My damage caused the tire to loose pressure down below 29 lbs in 25 mins -- which is considerable -- but the pump was still a good alternative.
So far the Pirelli's have performed well. Too early to make any real comparison to the OEM GoodYears. I would say the seem a bit quieter, but just a small judgement on my part.