Chrome OS allowed this even before 2020. So you could open Linux (even GUI) and android app right next to each other... Had whole JS dev workflow/toolchain running on that ( did not want to clog my main computer with that ). Problem with mixing apps is that for some you have to use mouse/ stylus because their GUI was not meant to be touched.
Security-wise: True; but Android is a gigantic yet well-oiled ecosystem at this point, from silicon designers to manufacturers to vendors to developers, running on handhelds to TVs to wearables to gaming devices (including AR/VR consoles).
> shame that Chrome OS was subsumed by Android
ChromeOS had a decade but Google is wise focus on just one desktop platform. I don't think it should surprise anybody that a platform with 3bn users & 2mn odd apps won out.
Using android on a laptop with a keyboard and mousepad was always an awkward experience. It's kind of like trying to use an iPad as your main computing device. Similarly bad experience.
Similar with a keyboard and mouse with Android TV - I thought it would be useful for YouTube searches etc, the UI is so ill adapted to keyboard I gave up.
It's always funny charging my phone off the USB C for my monitor, nudging my mouse and seeing a pointer appear on the screen though.