These are not "normal" tablets, but Boox's line of ePaper-based readers are the only Android tablets that distinguish themselves sufficiently in my already-large family of devices. I've used "normal" tablets with full-color LCD/OLED displays, on both the Android and iPadOS side, but I rarely find a good use for them. I've found them to sit in an awkward space with neither the convenience of my phone, nor the utility of my laptop.
The ePaper-based tablets are ideal for reading, but I do not relegate them merely to the "e-reader" category because they allow you to install Google Play and run basically any Android app. This makes them more flexible and powerful than most e-readers.
It comes with a built-in browser optimized for monochrome, and you can also install third-party alternatives like EinkBro.
That said, it's only for advanced users, and it's not a perfectly smooth experience. Just getting Google Play running on it requires jumping through some hoops, and you will find that most Android apps simply don't work well on a monochrome display (though Boox does offer color models, I have not used them myself).
I was hoping, for example, to use my Boox tablet to play Go, but despite the fact that Go is very much a "black and white" game, most of the apps use shading and colors that look like absolute ass on a black and white display. Some of them do not properly support the 4:3 aspect ratio either. So I don't want to set unreasonable expectations here. These are niche devices.
Despite these drawbacks, I really appreciate having an ePaper device. It complements my device family (phone, laptop, etc.) in a way other tablets do not.