[codethief]

Good question. Having had a quick look at my favorite search engine's results, screen responsiveness and ghosting seem to have been major issues, which is why many people suspect manufacturers are abandoning the technology.

https://goodereader.com/blog/e-paper/what-happened-to-all-th...

https://www.reddit.com/r/ereader/comments/15s7tgo/what_happe...

https://www.reddit.com/r/ereader/comments/zms0br/new_eink_ga...