Temporarily removing WordPress elements from a single page (header, footer, nav)

I’m redoing my blog and want to put up a ‘coming soon’ image and an email notification sign-up as my front page until it’s ready.

Unfortunately, I know absolutely nothing about coding and, while I have made a static front page from within WordPress, it still has the typical WordPress elements (header, page title, nav bar, side, footer, etc.) that I don’t want displaying right now… and there doesn’t seem to be an easy way, without coding, to turn those elements off temporarily.

I’ve gone through the searches, but most topics I found are 2-5 years old and I’m not sure if they’re still relevant or they discuss coding in detail in a way that’s far over my head and understanding.

Thank you for reading.