When you are woking on a document in G Suite and all off a sudden suffer an interruption of the internet connection (like on a train, for example), can you keep working offline and not loose the information. Will it be synchronized later, as soon as the connection will be established?
Google Chrome offers extensions for you to also work offline on documents. That’s a standard feature and possible without any problems. Same for Gmail, you can write emails, while offline.
Please find more about G Suite in general on this page.