In contrast, my tablets take center stage, with my smartphones and desktop computers performing additional roles.
In my opinion, the unique selling point of tablets is their combination of two properties: the ease of changing orientation and the presence of inputs (typewriter keyboard, piano keyboard, pinball flippers) exactly when needed. - Consequently, I don't confine my tablets in clamshells. I don't even stretch an arm to reach for a hardware keyboard for writing my characteristically long comments. I prefer using my fingers to using a pen.
The screen size that happens to suit me best is 13", but sometimes 10" is more convenient. Or I could raise my smartphone from a belt pouch.
There is a case for each operating system. In my metaphor: Android compares to iOS like tweaking your car to calling a taxi. - Side note: the Apple ecosystem does suit me. Huawei copied that to their Android and Windows devices. But Huawei...
On the slow rise of Android tablets: they have long had too little storage space, at least for me. I enjoyed my Google Nexus 10, but I found 32GB too limited. In late 2015 I bought a Google Pixel C with the maximum 64GB of storage, and a large iPad Pro with the intermediate(?) 128GB. (And six months later, I bought a Microsoft Surface Pro 3 with 256GB.) - On the other hand, Apple may long have been too skimpy on iPad RAM.