In the appearance column of your group's begin_group field, select 'field-list' or 'table-list' to view the selections as a choice grid or table grid of your questions. If you want to work with existing records to view previous inspections and populate the LastEdited field, you need use URL parameters to open the form in edit mode and supply a globalID. You will have an easier time if you link to the survey in the feature service popup in a web map so you can pass a selected feature's globalID to the survey form as a URL parameter.
In the popup configuration of your feature layer in a web map, add text like 'Update Record' or something intuitive/descriptive and then link the text to the the survey URL and add ?mode=edit&globalId=globalid to the end of the hyperlink (the globalId call is case sensitive on both sides of the = sign. I would also recommend storing your feature geometry and static information in the feature service, but store your inspection questions as a repeat(related table) in order to maintain access to multiple inspections. With this method you are not limited to the Survey123 form interface- you can access feature popups (and the form via the popup link) in mobile apps, dashboards, web maps, etc. Survey123 URL parameters are discussed here
