Multi-page pagination on a single post

Hey Team,

I'm creating a lengthy single post that I plan to break up into several pages using the 'Page Break' block.

Is it possible to navigate between the multi-page post without reloading the entire page?

For reference, I'd like to replicate the pagination experience on this site.

The content on that site seems to load only the lists part when either the letters or numbers are clicked.

After doing some research, I came across some stuff about AJAX. But before messing with any of that, I wanted to seek your assistance first.

While I'm aware of plugins like AJAX Load More (ALM), my preference is always to try non-plugin solutions first. And since this is only going to be for a single post, the ALM plugin would be an unnecessary annual expense.

So if you have any ideas or suggestions, I'd love to read them.