Hi,
The social sharing element uses an SVG. The icon list element uses 4 different icon fonts, each of which interprets the social icons differently (so that they match the respective icon font).
You can find the SVG used in the social sharing element here:
/wp-content/themes/bricks/assets/svg/frontend/telegram.svg
So overall it’s neither a bug, nor a feature request.
Best regards,
timmse