Yes it’s very different as it’s made differently. It’s not like the make up some powder and bottle it, they manufacture it as a drink.
It does taste much better imo and in the opinion of my wife and son. If it were cheaper and in a more sustainable package I’d ditch the power and as it goes, it’s a treat fo us
This topic has been discussed many times so if you use the search function you’ll be able to find previous threads with a lot more answers. But essentially they are different products for different use cases. The ingredients are different, there is a lot more fat in RTD than powder for example, which helps explain the texture difference, and probably effects the taste profile too.