Latest Posts in horizontal with scroll

Hello,

I’m working on WP6.1 with blocks, and using Latest Posts in grid but I would like to display them inline horizontally with a scroll like in this image.

content
content
post1 – post2 – post3 – post4 – post5 – post6… ››
content
content

I have a vague idea of a flex solution but I don’t know what should I do to embed full width on the right.

.wp-block-themeisle-blocks-posts-grid .is-grid {
    display: flex;
}
.wp-block-themeisle-blocks-posts-grid .o-posts-grid-post-blog {
    display: flex;
    flex-direction: column;
}

Thanks in advance for your suggestions,