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I absolutely agree what you say.

I think you can get your goal by a common js script able to make “tabs” via shortcode.
The first tab script I found is here:
https://michaelwender.com/blog/2010/11/01/creating-wordpress-shortcodes-for-jquery-tools-tabs/

Put tabs shortcode around each snippet of form fields you have.

I hope this may help.

Good luck and … sorry for my bad English, I’m Italian.

Alfredo