I have a first generation Kindle Oasis, which is a great device, in no small part because of its asymmetric design and page turn buttons. The newer Oasis (still last refreshed in 2022) have better lighting (temperature adjustable) and inverse text mode, which are both nice but have not been enough to get me to upgrade. It lacks the battery cover of the original oasis, which while kind of a pain was nice because it gave a very natural way to hold the device.
I'm sad to see that the Oasis line is not mentioned here. I have little to no interest in using my kindle as a writing device, and honestly would prefer that the touchscreen was as little used as possible -- an unresponsive or slow screen is the worst case for a touchscreen, since the feedback loop is terrible.
I don't know if they'll have an OS update to go along with this. I have found successive updates to be worse and worse -- my pages are all crammed with ads (not actual ads since I paid to have them removed, but "recommended books") and large page covers. I can barely fit five titles from my library on a screen; I would much prefer to have just the title/author/progress and fit twenty on a page.
The integration with the Amazon ecosystem is probably the best selling point, but until somebody shuts down Libby I've switched my habits to be almost entirely rent-based rather than buying books.