Landing Page not for website page?

Questions:
Should I have not used a Landing Page template for my website pages?
Should I try to make a fancy “landing page” style type on my own inside a Page?
Yes I can use Blocks or even Elementor but they aren’t as cool looking.

Background:
I’ve read and read about Landing Pages for email campaigns and advertising blasts – that is great! But that is not what I want to do with my Landing Page. I’d like to use it as a: footer to a page/s; website full page.

Solution – Not Really:
I’ve only found [ embed ] options inside a block … but this produces a link b/c it’s not on the white list. Ideally, and I’m a dreamer, I’d like this beautiful landing page to be used on my website and not as an email or advertising outside my website.

Thank you for your help.
jd

(I’ve spent a couple hours searching wordpress forums for _more direct answer_ and haven’t found it – thus this post.)

The page I need help with: [log in to see the link]