Powder is still cheaper. Just less cheap for you since you probably don’t use your dishwasher that much, but it’s cheaper
The dissolved material is still waste material, the waste is just in the sewage and not in your bin
I just add this point because of the formatting
This is subjective, but I think it’s slightly less work. You either have to make sure your hands are dry to not dissolve the wrapper or you have to throw away the wrapper. Either way it’s not a lot of difference
I watched the video and was not really convinced
For 2. you should know that coating isn’t like plastic, it is plastic, and just because it dissolves doesn’t mean it breaks down
Powder is objectively cheaper though.