I can't say for sure that's what did it. But I had my shock leak recently, and the dealer had it rebuilt at KTM (in Ohio) last week.
When I first started riding in July of 22, I felt that the CAT was super hot against my leg. I bought a decat pipe and Camel ADV shield.
Dealer picked my bike up in December to do 1st service (Heated grips, and a few other little things) and when they brought it back, I noticed some leakage under the bike in the trailer, and on top of the skid plate. (the bike was cinched down compressing the rear shock)
I didn't take it off the trailer or accept delivery and asked them to bring it back to the dealership and that's what they said they found was the "shock was bad"...
I only had about 1200 miles on the bike. Maybe half of that with the CAT still on. So yeah, I would like to believe that is the culprit, or bad shock from the factory. Either way, I am glad I caught that when I did.