Could the site look like this via the RankMath plugin

Hello,

Thank you for contacting the support.

Those are called Sitelinks and Google decides them on their own.

Google sitelinks aren’t something you can enable, activate, or opt-in for. It’s up to Google to enable them for a website which they think is authoritative for a given query. There is no specific setting or Schema to instruct Google to display links in Sitelinks.

You can read more about that here:
https://support.google.com/webmasters/answer/47334?hl=en

With that said, here’s a nice guide you can follow to increase your chances to have Sitelinks from your website:
https://kinsta.com/blog/google-sitelinks/

Hope that helps.