Still works! 5⭐

Yesterday I was using the official plugin (why are links no longer allowed?) – Web Maps for WordPress By GEO-Jobe GIS Consulting.
It worked well in itself, but broke functionality on my site that I was unable to fix (I use Divi page builder and some custom plugins).

I was apprehensive installing this old unofficial plugin, but it works very well and does not seem to break anything else on my site. (In fact, even my old shortcode worked, out of the box!)

It would be nice to get a plugin update to officially confirm WP compatability and remove the soft warning:
“Version: 2.0.4 Last updated: 4 years ago.
This plugin hasn’t been tested with the latest 3 major releases of WordPress. It may no longer be maintained or supported.”

But other than that, many thanks to the author @gavinr for providing this option. 5⭐