Boox e-ink tabs do the same thing, but they're Android underneath so it's not locked down to Amazon and dependent on partnerships with Microsoft to add an export button.
I have a Boox that I'm quite happy with. It's quite pleasant to write on, and the battery lasts a considerable amount of time. The calibration seems to sometimes go off slightly, but I'm still not sure if that is the device's issue, the pen, or myself.
My Boox is about 3 years old now. Most of my reading is done in the Kindle app, and I enjoy the writing experience, but feel there are ways that an Amazon device could provide better integration with note taking in the books I'm reading.
I'm starting to notice the battery on my Boox doesn't last as long as it used to, so I'll probably replace it with a Kindle.
I got the Ratta Heart of Metal Pen to use with my boox, and it's a really nice writing experience, and I don't have to replace tips (I found the boox tip didn't last very long). Just added a screen protector and it's been great.
https://supernote.com/products/heart-of-metal-pen
Boox A4 is great (Max Lumi 2), extremely practical. Can't go back to smaller e-inks. Kindle almost needed lens to read anything and I can't imagine writing on it.
