On Oct 18, 2022, Cisco released SWG Umbrella Chromebook Client v1.0.3 to bring SWG functionality to Chromebooks.
This client is deployed as an extension within Chrome Browser and helps intercept web traffic and redirect to Umbrella SWG Services for inspection.
You can deploy this client to your Chromebook using Google Admin Console by searching for following extension ID in the chrome web store- jgnjaoilojahgagddnkeankieagghabk
Detailed deployment steps and pre-requisites and can be found here.
Known Issues and limitations can be found here.