Is Squid compatible with Chromebooks / ChromeOS?
If your Chromebook has access to the Google Play Store, then yes!
Google is bringing Android apps to Chromebooks (ChromeOS) via the Google Play Store. You can download and install Squid through the Play Store on your Chromebook.
Squid was demoed at Google I/O 2017 as an example of an app that runs well on ChromeOS and takes advantage of features like stylus support on devices like the Samsung Chromebook Pro.
The Play Store for ChromeOS is a work in progress, so you might encounter issues with Android apps. See below for known issues with Squid on ChromeOS. For the best experience, make sure your Chromebook is up-to-date with the latest updates to ChromeOS.
Connecting with other apps
When importing a PDF, adding images, or exporting a note, other apps such as Drive or Gmail do not appear as options. Unlike a phone or tablet, these Android apps are not installed on a Chromebook by default. You need to install these Android apps from the Play Store in order for them to show up as options. This is different than having the Chrome apps installed.