I just installed this module and dropped a test display field into a node page via Layout.
I'm getting the following console error:
The resource ./modules/contrib/better_social_sharing_buttons/assets/dist/sprites/social-icons--square.svg was preloaded using link preload but not used within a few seconds from the window's load event. Please make sure it has an appropriate `as` value and it is preloaded intentionally.
Active
4.0
Code
Related article: https://geoffrich.net/posts/preloading-svgs/
That is interesting as I don't see any attempt from this module to preload the svg.