In #4042 we have made it so that external links in the dashboard are indicated with an icon to the end of the link:

I think that it would benefit all to have a consistent way to do this (say by adding an external class to links), and to allow people to theme it easily.
Noting that there are many places in core where we have external links in place, like help text, status/error/warning messages, the site status page etc.
Recent comments
Out of curiosity: why are these tags only relevant for admins? Don't "regular" editors on that site also need them under circumstances? Yes, the editors play nicely, no problem to...
Specific tags to work in CKEditor 5
Worked like a charm! Exactly what I envisioned... now I can edit the ruby text right in the editor, sweet:) Thank you! For those who may have a similar issue, try TinyMCE, create a new "text...
Specific tags to work in CKEditor 5
Yes, you can use TinyMCE on some content and CKEditor5 in others. There is no problem having both enabled on a system.
Specific tags to work in CKEditor 5