Since I work with Drupal, I had a lot of project, with some case of third party application maintenance. One of the most consistent problem is the very low quality of the code, whatever it's a big company or a small client, there is always a lack of technical management. Drupal the culprit? Drupal is very flexible and is probably providing the most powerful site building in the industry. But...
Coding
With Drupal 9 we have access to the class confirmFormBase which extends FormBase. This class is used to quickly add a confirm step to your form. Common usage is to confirm a deletion: "Are you sure you want to delete node 23?" The basic usage is to create a new route for the confirm form, living side of your form, and use route parameter to pass an id. One form with confirm step included But here...