Mobi and epub: https://www.dragonsteelbooks.com/collections/featured-products/products/dawnshard-ebook

Kindle (the app should work on PCs and phones/tablet s): https://www.amazon.com/Dawnshard-Stormlight-Archive-Brandon-Sanderson-ebook/dp/B08MXXWYT7

Audio should be coming soon, and physical for everyone once the TWoK X Anniversary Kickstarter has been fulfilled.

Other digital stores should also sell it.

It's available for me. https://smile.amazon.com/Dawnshard-Stormlight-Archive-Brandon-Sanderson-ebook/dp/B08MXXWYT7

Here is the link: https://www.amazon.com/dp/B08MXXWYT7/

https://www.amazon.com/dp/B08MXXWYT7 for reference

Book is good.