WP Core: Gallery
Up to 8 columns are supported. The shortcode supports a lightbox, but the block does not. This is probably a relatively simple update in Responsive.
Interface Options
Examples
Gallery shortcode inside Classic Editor block
Gallery Block, 2 Columns
Bell on wharf in San Francisco 
Seed pods on stem, Woodvale 
Gallery Block, 3 Columns
Bell on wharf in San Francisco Seed pods on stem, Woodvale 
Gallery Block, 4 Columns
Bell on wharf in San Francisco Seed pods on stem, Woodvale 
Gallery Block, 5 Columns
Bell on wharf in San Francisco Seed pods on stem, Woodvale 
Gallery Block, 6 Columns
Bell on wharf in San Francisco Seed pods on stem, Woodvale
Gallery Block, 7 Columns
Bell on wharf in San Francisco Seed pods on stem, Woodvale
Gallery Block, 8 Columns
Bell on wharf in San Francisco Seed pods on stem, Woodvale 
Gallery Block, 8 Columns, Crop Images Deselected
Bell on wharf in San Francisco Seed pods on stem, Woodvale