With some apps (unsure if any open source ones exist), Android can become a Bluetooth Keyboard for a connected computer too! The keyboard isn’t very useful, but having a portable trackpad for a laptop during presentations may be helpful
re: OneNote
Although not a replacement for OneNote on Windows 10/OneNote in Microsoft 365, you can get Waydroid and run OneNote’s Android app with it.
I don’t have a stylus so I’m not able to check if everything works, but if it does, it’ll hopefully feel better than the web client, which wasn’t able to keep up with stylus strokes last time I checked. The number of pens is lacking though, even the iPadOS version is better…
We have a Panasonic inverting one that has a flat bed (no turn table) and it doesn’t heat evenly…
doesn’t bother them if they’re a property investment company