To provide great documentation to your customers, you can insert Jira issue macros into your page content, which makes them more descriptive and appealing than just a plain link.
To have these you’ll need to create a classic (not a next-gen) Jira project which has its “Browse Project” permissions set to “Public“.
You’ll find these settings in Project settings > Permissions.
When you are using the new editor and have added a single Jira issue card - i.e. not a table -, the next time you edit the content the editor will change the macro to a link. This is a known bug in Confluence Cloud.