Will Solid stage-batteries provide longer range? Recent introduction of production-ready solid state battery by Donut Lab & it’s use by Verge Motorcycles.

Verge Motorcycles made this announcement on 5th Jan 2026: https://youtu.be/cy_mXYItqXU (The Verge TS Pro becomes the world’s first production motorcycle powered by an all-solid-state battery)
The same day, Donut Lab Introducing Donut Battery: the world’s first all-solid-state battery in production vehicles https://youtu.be/Y-aPS2AwMbc
The Yoututuber Electric Viking made a video about saying that it's a "game-changer" for transportation. https://youtu.be/x9xriZvZuKs

— I am curious to know, how legit are these claims about Soild State Batteries?