I don’t see a way to make text in task comments into hyperlinks (like you can in the task description). I think we can only embed a link, which inserts the full hyperlink. This is an accessibility issue, so I hope Asana developers can make this a feature.
I found one workaround: Crate the link text with the hyperlink in the task description, and then cut and paste it into the comment.
or you can also use the shortcut keys Ctrl + K by pressing them simultaneously
The same thing can be accomplished within comments section the layout just looks a little different. You can create hyperlinks by using the + “Insert an object” icon or the “A” the “Formatting” icon or of course the handy dandy Ctrl + K shortcut!
Please let me know if I understood you correctly. Hopefully this information helps.