You may call it glue down, however my 2016 jayco , out of the factory didnt glue it down.. so when it ripped because it was not glued, I replaced it. I think they dont glue it because it could add another 50 to 75 pounds in weight?? or it faster and cheaper.
If you are having this installed, ask them what kind it is OR if you want that flooring installed from an old camper you had (which is in the picture) you will have to look at flooring places or Home depot,Lowes,Menards to find what you like. Then have the dealer install it.