The links you shared doesn’t look like they were entered correctly. The all return a 404, but as you can see, part of the link is a hyperlink, the the rest of it is in plain text afterwards. So we can’t see what you’re trying to show us.
When you say you disabled Gutenberg, did you do this by enabling the Classic Editor?
After you created your field groups, did you edit your template files to retrieve and then display the values…either using get_field() or the_field()? Sorry, had to ask, just saw a forum where a guy thought the values would magically display in the front-end without doing any coding the page/post’s template file.
