Survey page
Every activated survey gets its own URL with SEO tags. How to find the link, change its base, turn it off, and what the indexing and redirect settings do.
Shortcode
The [surveyx id="123"] shortcode syntax, its size attribute, where you can paste it, and why it sometimes does nothing or shows as plain text.
Gutenberg and Elementor
Add a survey with the native Gutenberg block or Elementor widget instead of typing the shortcode, and what a free site sees in their place.