Inserting the dynamic meta title and meta description fails

This (inner text) is not correct as it will produce code like this:

<meta name="description"> 
Content goes here
</meta>

which is actually quite wrong, as you can see on your screenshot

The correct syntax for this meta tag is:

<meta name="description" content="Content goes here">

which means that in your case you need to make the content part dynamic and this happens as usual by adding dmx-bind: in front of it:

<meta name="description" dmx-bind:content="getPage.data.queryGetPage.metaDescription">

Not sure what you mean by this screenshot:

but if you want to use server-side rendering for meta tags in a NodeJS project, then follow this tutorial: