src/vs/workbench/services/editor/browser/editorService.ts/EditorService/getEditors
class EditorService:	getEditors(order: EditorsOrder, options?: { excludeSticky?: boolean }): readonly IEditorIdentifier[] {
		switch (order) {

			// MRU
			case EditorsOrder.MOST_RECENTLY_ACTIVE:
				if (options?.excludeSticky) {
					return this.editorsObserver.editors.filter(({ groupId, editor }) => !this.editorGroupService.getGroup(groupId)?.isSticky(editor));
				}

				return this.editorsObserver.editors;

			// Sequential
			case EditorsOrder.SEQUENTIAL:
				const editors: IEditorIdentifier[] = [];

				for (const group of this.editorGroupService.getGroups(GroupsOrder.GRID_APPEARANCE)) {
					editors.push(...group.getEditors(EditorsOrder.SEQUENTIAL, options).map(editor => ({ editor, groupId: group.id })));
				}

				return editors;
		}
	}