Every free quote template is the same shape: your name, their name, a list of lines, a total. That shape is fine, and it is also why so many freelancers end up doing three extra rounds of work for nothing. The document said what the job costs. It never said when the price stops standing, what the price does not include, how many rounds of changes are in it, or where the client agrees to any of it.
Those four fields are the entire difference between a number in an email and a document that settles an argument six weeks later. So this asks for them, and tells you plainly what each missing one is likely to cost.
It also asks something the category tends to blur: is this a fixed price, or a considered guess? A quote commits you. An estimate can move, and saying so up front turns a later change into a conversation instead of a fight. Picking one changes the wording on the page.