"Web View" for a normal text document and "Writer/Web" is not the same. If you have a normal text document and then click on "Web" in menu "View", it is still a normal text document and you can insert comments. The difference is, that you have no pages, but one large area. This "Web" view is the default setting for form-documents in Base.
This setting is a property of the document. If you like it as default, then take an empty document, set it into "Web" view mode and save it as template. Check "Set as default template" and all new documents will start in "Web" view.
"Web" view is sometimes useful, if you have content in a frame, that is larger as the frame and you want to see it. You do not see header and footer in "Web" view, but they still exists. Because there are no pages, footnotes area collected at the end of the document. Because there are no margins, content from the margin is shifted into the text area.