WP Revisions moved/removed from AdminNeo = less bulk for database?

I'm going through this here, shouting at it with SQL - might get blocked;

Why have I got for example, Home 3, Home 2, Home 1, About 2, About 1; each labelled as Revision in post_type columns.

I've only grabbed my smart glasses as I type this, I'll crack open a file and see if it is just revisions of an updated page...

The way my brain is seeing it, delete the older revisions and save the newest...