The hardware's fine, but software-wise Kindle is still a horrible ereader. It still refuses to read epubs, the de-facto ebook format used by the rest of the world. Its native formats are terrible: mobi is an ancient, horrible proprietary binary format. If you get a nicer modern mobi but use "send to Kindle" to transfer it, Amazon inexplicably and silently removes all advanced formatting, effectively downgrading it to a mobi from 2002. azw3, its own proprietary format that competes with its other two proprietary formats (the third being kfx), is kind of a repackaged epub but more annoying to create, not open source, still lacking in many of the formatting features we expect from ebooks in 2021, and incompatible with "send to Kindle"!! The fact that Amazon has three competing proprietary ebook formats, each more terrible than the last and one of which literally can't be sent to its own devices, should be telling.
Kindle software is software made by people who hate reading. If you want an ereader, get literally any other device. Don't support Amazon's disdain for the market it has a stranglehold on.
Kindle software is software made by people who hate reading. If you want an ereader, get literally any other device. Don't support Amazon's disdain for the market it has a stranglehold on.