how do I turn off whatever causes links to be embedded as URL's site title

When I print a url onto my site, it automatically gets wrapped in:

blockquote class=wp-embedded-content data-secret=tDj3qpdVAia href=https://www.example.com/Example Domain/a/blockquote

even though all I printed to the page is https://www.example.com/. What is this mechanism and how can I disable either on a specific page or site-wide?

What I Tried

• adding the code here to my functions file: https://crunchify.com/how-to-disable-auto-embed-script-for-wordpress-4-4-wp-embed-min-js/
• adding both snippets of code (separately) from here to my functions file: https://kinsta.com/knowledgebase/disable-embeds-wordpress/#:~:text=Disable%20Embeds%20in%20WordPress%20With,the%20core%20contributors%20to%20WordPress.