In reply to Daniel.

As an additional note about the default Twenty* themes, I honestly feel like the team doesn't have much time to implement a truly great theme. Often, it's far too late in the year and folks are scrambling to put it together.

For example, I'd love for work on Twenty Twenty-Two to already be underway now that we're halfway through March. But, it'll probably be months before we see any hints of it.

The process for default themes needs to be restructured. There needs to be a research period, mockup of ideas, etc. The last few themes have been borrowed from existing projects because there really has not been time to implement something from scratch.

I agree with you. As much as I think Twenty Twenty and Twenty Twenty-One are pretty neat projects, WordPress has not delivered on showcasing the block system via its default themes.