Insufficient information in the OP to make a determination, and even then it would be speculative.
There are many, many, many types of media available in inkjet printing: fibre, fibre-based baryta, pure rag, treated multi-rag mix, resin-coated, hand-pressed... it is not a short list!
I don't think many photographers are telling their customers their prints will last a 100 years, if they are telling them anything.
It usually comes up as part of discussing and viewing a print. I was asked last Friday the question about
"the keeping qualities" of inkjet. At this time we cannot be 100% certain how long
raw prints will last, and spurious claims of
"...it'll be around in 100...300 years!" are at best highly conjectural and unproven, because the method of printing has not been around long enough to make informed decisions on long-life archival stability. Twenty years is nowhere near long enough to pass judgement. Come back in 50-60 years at a minimum.
Inkjet media technology is constantly evolving, as are the claims (and as usual, counter-claims) and it is unwise to put the name of any one manufacturer at the top of the pile when in actual fact there is no real difference other than the price! There is agreement, however, that prints that have been museum-grade conservation framed will have a much better chance of lasting a good many, many years than those stuffed into the top drawer with bits of tissue for protection.