Question: How to pass values from one to page to next?

If I am working on one page and navigating to another, how can I pass a variable over to the next page so there is some context? In the two videos I saw there was no mention of a multipage setup hence any help on this field would be great to try out.

The issue names no files, tests, or entry points. First clarify whether this requests a new multipage data-passing capability or usage guidance, then identify the relevant navigation entry point and define a test or example that demonstrates the value surviving page navigation.

Written by the indexing model from the issue text.