We have used every kind of TP on the market. When dumping the tank, I use a clear section of pipe to what's coming out. Only very rarely have I ever seen an actual clump of TP. Almost always, it's so broken down, you can never tell anything is even flushing out.
We use the same stuff at home that we use in the camper. We have a septic tank at home and have never had problems. We had it cleaned out once, but that was several years ago now.
There is nothing extra ordinary about RV TP, except the price!