I use a lot of links in my Agenda notes. Links to files, folders, mails, websites, even items from other applications , like Things-tasks or other related Agenda-notes and so on. It would be nice, if a decent symbol next to the link indicates what kind of link it is to make them a little bit more distinguishable.
I sometimes apply emojis manually to distinguish links, but this is cumbersome and also a bit clunky. Monocolored, small and decent icons that get applied automatically like the „tag“ or „people“ icons would better serve the purpose while not being too distractable.