What a wuss. I hope you aren't tasked with solving IT problems.
On MacOs, drop a pin and mark it using the favourite icon. It will go into your Favourites collection.
Pick one of your Favourites in the Map app. It isn't hard to do,
Click the information icon
Click the Share button
Choose Copy Link
In the URL that is copied to your clipboard, change 'apple' to 'google'. Anyone, including your friends, can open it in a web page.
For example, here is one of my favourites from a visit to Japan.