This. As a hiring manager I noticed on interviews that many engineers when asked about patterns, do not even realize how much they rely on them in standard libr

This. As a hiring manager I noticed on interviews that many engineers when asked about patterns, do not even realize how much they rely on them in standard libraries and rarely understand that it’s not a fixed collection of templates, but rather a way of working with code. If you identify a common design and give it a name, you can save a lot of time explaining solutions based on it.