Please try this code

Step 1)First you have to load the products

$_productCollection = $block->getLoadedProductCollection();

Step 2)In the product listing page ,there will be a foreach loop for listing the products like this

foreach ($_productCollection as $_product)

Step3)Your code will be inside this loop.Place the below code at a place whereever you want to display the attribute label.

$_product->getResource()->getAttribute('your_attribute_code')->getFrontend()->getValue($_product);

Please try this code

1. First you have to load the products

   $_productCollection = $block->getLoadedProductCollection();

2. In the product listing page ,there will be a foreach loop for listing the products like this

   foreach ($_productCollection as $_product)

3. Your code will be inside this loop.Place the below code at a place where ever you want to display the attribute label.

$_product->getResource()->getAttribute('your_attribute_code')->getFrontend()->getValue($_product);