Does quantity demanded refer to all consumers or individual consumers? When looking at points along the demand curve, is each quantity corresponding with each point referring to the total quantity demanded by all consumers in a market or the quantity demanded by individual consumers?

I am looking at the market supply and demand graph and the graph for each individual firm in perfect competition (the horizontal demand).
If it’s a “market demand curve,” that means the quantity demanded is that of the entire market. If it’s an “individual demand curve,” it’s the quantity demanded of an individual consumer. If you open an Econ 101 textbook and look at the supply–demand equilibrium diagram, they’re generally talking about market demand and supply curves.