In order display simple content in home page it doesn't require Block or Controller instead you follow these steps to display content in home page.
Firstly, you need to change template to templates.
then
Add cms_index_index.xml in vendor/module/view/frontend/layout/cms_index_index.xml
then add the following code to the xml
<?xml version="1.0"?>
<page xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:View/Layout/etc/page_configuration.xsd">
<body>
<referenceContainer name="content">
<block class="Magento\Framework\View\Element\Template" name="test" template="vendor_module::content.phtml"></block>
</referenceContainer>
</body>
and you can locate your content to specific place in home page by adding these parameters to block element.
you may use before="before.body.end" or after="before.body.start or after.body.start" etc..,
If you want to display any dynamic content which loads from database then you require block to load data.
Hope this helps.
Peace :)