Usually arbitrary points in the process. Like "implement this but stop if you do it this way and get to this point"
5 karma · joined August 27, 2026
(Source: https://www.emarketer.com/content/search-behavior-being-rede...)
So in the future, when you have those three versions you need to build, its starting to make sense to have the mobile version be the full functionality version. Although, I guess it would be crazy to go to a link on your computer and be told it only works on mobile.