I'm finding our phones are our "main" computing device. Why don't we use it as such? Albeit too small to use as an input although via voice, it can be just as productive but display doesn't match the amount of data that needs to be visible to be productive (I being a dev, although same would go for any discipline I suspect it) I just started using this over a chromebook:

Portable Monitor w/ Keyboard

https://www.ebay.com/itm/313275076315?

Kool thing about this unit is 1. builtin battery to power it and phone

2. the screen is touch screen! so basically it's a 13" interface for your phone! make ur car a tesla! ;-)

3. can be used as an extended monitor to your chromebook/laptop.

You of course need a phone that has a USB 3.1 and desktop although there are apps that can mimic and give you that FULL desktop experiences such as Userland and Leena Launcher.

And finally some apps can't expand to full or resized windows.

nevertheless, $300, very very fun to have with you everywhere.

Why better than chromebook? ..honestly don't know. I suspect I could have worked on making it happen but doing it on/from your phone so far seems fun! and of course it's always connect to the web vs chromebook needs to be tethered.