Bootstrap and CSS FlexBox are different beasts than Angular Flex Layout. If you learn Angular Flex Layout, you will code a lot less layout code, because Angular Material automatically does the right thing most of the time, but you'll be in for a disappointment once you realize how much more code you have to write to get things working once you leave the protective cocoon of Angular Flex Layout. However, your skills will still translate over, since the concepts are largely the same.

Let's review the Flex Layout APIs in the coming sections.