There are unique URLs for each document type, and they are also different per platform (web/iOS/android). So, yes bookmarks are great, but it's helpful to have all the necessary links in one place.
var urls = {
"web": {
"doc": "https://docs.google.com/document/create",
"sheet": "https://sheets.google.com/create",
"presentation": "https://slides.google.com/create",
"drawing": "https://drawings.google.com/create"
},
"ios": {
"doc": "googledocs://docs.google.com/document/create",
"sheet": "googlesheets://docs.google.com/spreadsheet/ccc?new",
"presentation": "googleslides://docs.google.com/presentation/create",
"drawing": "https://drawings.google.com/create"
},
"android": {
"doc": "intent://#Intent;package=com.google.android.apps.docs.editors.docs;end",
"sheet": "intent://#Intent;package=com.google.android.apps.docs.editors.sheets;end",
"presentation": "intent://#Intent;package=com.google.android.apps.docs.editors.slides;end",
"drawing": "https://drawings.google.com/create"
},
}