Here's an article from June with more details about the current status of sodium-ion batteries (in China): https://carnewschina.com/2023/06/07/lei-xing-is-catls-sodium...

Note that CATL also claimed 160Wh/kg two years ago, but what they will actually be making will probably be closer to 120.

I share your frustration. Nothing about charge cycles, and "safety at high temperatures" is less interesting than an actual operating range specification.