Lineage OS offers a more simple and less resource intensive OS option to those using bloated Android versions such as what is found on Samsung/HTC devices.

Lineage OS keeps most of the aesthetic and conventions as they are in stock Android. It uses that as a base to build on top of and add customization options. There's even a Google Apps package that will install the stock apps and Google Now Launcher, but can be avoided if a cleaner experience is preferred.