I can't even imagine using the block editor without a grid block, even a simple one. TBH, this should have been in the first phase of Gutenberg, had it not been so hasten. With it, probably Gutenberg adoption would have worked a little better. Some of the included layout blocks are of very limited use, if any.

There's not one project where I used the block editor I didn't use some third-party grid-like block.

I'm particularly in love with Tom Usborne's approach to a layout block plugin, https://generateblocks.com/. You get a container, grid, headline and buttons. No more, no less. I'd say with this package you can solve the majority of layout problems you get with the core blocks.

Now the issue will be whether including an opinionated grid block will conflict with other grid implementations by themes and plugins. Which