Is it possible to reuse forms? Or have the same form on multiple pages?
These are the directions I find. But, they don't seem relevant.
To reuse a form in Squarespace, you can follow these steps:
Go to the page or post where the form you want to reuse is located.
Click on the form block to select it.
Click on the "Duplicate" button in the top right corner of the form block.
Go to the page or post where you want to reuse the form, and click on the "Add Block" button.
Scroll down and select the "Form" block.
Click on the "Duplicate" button in the top right corner of the new form block.
The duplicated form will now appear on the page or post, and you can edit its fields and settings as needed.
Note: Keep in mind that the changes you make to one form will not affect other instances of the form, so if you want to make changes to the form in multiple places, you will need to update each instance individually.