Aren't those just regular Li-ion with thickened electrolyte solution? There seem to be some noises around "almost solid" batteries pushing the definition of the word "solid".

The real production solid states are made with inorganic materials, many not in pouches nor cylinders, and has wild environmental resistance like supporting charges in -55 to +125C(-70 to +260F) which won't be possible with most water inside.

One of the recent high temp tests showed a degradation in capacity that is supposedly [0] strongly consistent with solid state tech. I'm not qualified to know better unfortunately.

[0] https://youtu.be/vWwPySIm9tU?t=511