What do you call standard?
We use the plastic angle adaptors ( adjustable gooseneck ) as standard.
Some work needs a longer neck to reach or get the angle you need to get over a roof edge, conny or deep sill windows.
Why people use a fixed gooseneck for everyday domestic work is beyond me, but it works for them and that's what matters. I like to adjust the head for uppers and lowers, but that just what I prefer.
Darran