https://wccftech.com/samsung-shows-a-double-folding-galaxy-fold-prototype-and-it-is-impressive/

We have finally entered the third generation of foldable phones from Samsung. Despite the Galaxy Z Flip 3 and Galaxy Z Fold 3 being impressive devices, we have enough evidence to suggest that Samsung is not planning on slowing down. We have already seen a phone that flips and a phone that folds, but we are now getting the chance to see the phone that has not one, but two folds, and I am willing to put down money for this one.

Samsung appears to have a foldable prototype currently on display at IMID 2021 (International Meeting for Information Displays). You can see the device in action in this YouTube video below.