Show element based on product ID

Hello,
I was wondering if it is possible to show an item based on a product ID from the product page?
For example if a certain product is being shown on the product page I want it to show a text box.

Here is my code so far;

let productId = product._id;
let freeSample = "ad8e5eee-5939-d0aa-6094-e620986543fe";
if productId = freeSample; 
  $w("#about").show();
  
I feel like I am missing something here for sure

Never have seen this one before…

if productId = freeSample;$w("#about").show();

What about…

if(productId === freeSample) {$w("#about").show();}