How to copy mouse-over / tooltip text that someone added to Mastodon picture description ?

Right click picture / image
select View Imagine info
see there in the notes the text

Example: Try mouse-over on this post's image:
https://todon.nl/@prolrage/108419943242331107

You should the mouse-over / tooltip text in this picture and steps above can copy the text description (useful not to type it all out when someone already has!)