Primeflex Grid System adds unwanted margin

Question

When using Primeflex 3.3.1 in Angular it automatically adds margin on the right and always adds a horizontal scrollbar. Here some minimal example:

<div>
  <h2>Chargepoint Simulator</h2>
</div>

<div class="grid">
  <div class="col">
    TEST
  </div>
</div>

How can I prevent this?