You need to follow these steps in order to know which are your forms with higher submissions:
1- Open the Forms page
You need to open your forms page by going to CRM > Forms. There you’ll find your created forms listed.
2- Check the Views and CTR columns
We mark the form submissions as a percentage number under the CTR (Click Through Rate) column. The percentage is how many form submissions there are to the number of views.
The Views and the CTR columns together will tell you which forms are performing better.
Now you’ll see which of your forms have more submissions.