Here’s live preview on the left, reading view on the right:
Here’s the example link to a message on Element (link): https://chat.mozilla.org/#/room/#introduction:mozilla.org/$2X5vhvJOmsrlTL5LLgJsQ6CXL57HhQhMUqB1AAfWPKw
There was already a post about this, but not a bug report, here: Dollar symbol ($) in links is causing issue