Q.My squash/butternut is not butternut, these are round, bigger than cantaloupe, a little yellower skin and grows on vine?
I bought seed online that was supposed to have been butternut– have grown butternut in past. This variety vines like butternut, but does not look anything close to butternut. Fruit is round, about 6 inches in height and about as big as a soccer ball.

Certified GKH Gardening Expert
This isn't uncommon, and will likely result in a healthy butternut. Sometimes they can start out almost round, or cube-like ,even!
Sometimes, though, seed companies can accidentally mislabel seeds. This could be the case here, as well.
This article will help you to care for butternut squash: https://www.gardeningknowhow.com/edible/vegetables/squash/growing-butternut-squash.htm