No updated information for SquareSpace 7?

I keep seeing posts on how to insert a form into squarespace, and replies for which step is inapplicable........SS no longer uses blocks, so step 3 of your instructions. Some help would be appreciated. 

Thank you for letting us know about this, we will update the guide. Upon searching on Squarespace articles, I found this one in order to add blocks with insert points: https://support.squarespace.com/hc/en-us/articles/206991377

So, here is the example on how to insert the Iframe code of your JotForm:

If you need anything else please open a new thread, we will be glad to assist you.