How do you feel about flex in grids?

Question

css

Subject) The
question is purely informational. Have you seen such a combination and how do you feel about it?
For example:

.container {
    display: grid;
    .items {
        display: flex;
        &-2 {
            float: right;
        }
    }
}

Answer 1

I'll tell you more - that's how it was intended.

Answer 2

same as for float in flex