Thank you Justin for pointing that out. I thought I was doing something wrong when building my custom theme and using WordPress core blocks to design so many different layouts.. I don't think I'm using a single third party block.

I ran into a issue where I needed multiple classes for a block layout, I thought I could maybe create a block variation but then I remembered block patterns exist now :)

The only extra block tool I'm using is a plugin that removes top or bottom margin, but I mostly try to handle the design in the theme.

You can also create pretty nice pricing tables just using the table block.