This image shows a combination of two possible Publish dialogs. The text on the left reads "Fill in the required fields so we can initiate a code review. After the reviewers sign off, you'll be able to merge your changes to the <name> environment. The CI/CD pipeline will then deploy your changes to the Development environment."
The text on the right reads "Fill in the required fields so we can initiate a code review. After the reviewers sign off, you'll be able to merge your changes to the <name> environment. The CI/CD pipeline will not run because its jobs are disabled, so in this case "publish" is the same as "merge"."
Beneath this text in both images is an area in which you can enter a Commit Message, add Reviewers, specify Linked Issues, then click the Publish button at the very bottom of the dialog.