Is your feature request related to a problem? Please describe.
There are a few issues where many are asking for the No Follow link option.
Such as:
Add easy way to modify links and add toggle options.
https://github.com/WordPress/gutenberg/issues/17556
Add nofollow option for links
https://github.com/WordPress/gutenberg/issues/13542
Make link selection consistent
https://github.com/WordPress/gutenberg/issues/17293
and there are probably other associated issues.
Describe the solution you'd like
Today we have this link dialog:

I am wondering if we should add an Advanced Link option to the options modal similar to this mockup:

Clicking the Advanced links will then change the Link modul and add additional options to it like the No follow option.
Describe alternatives you've considered
Editorskit plugin already has additional link options included in it's link modul so the user can always choose to use that.
I don't personally think it warrants a separate display option.
Hey Rich @richtabor
I am trying to look at different ways we can handle the additional link attributes. This was one way I thought of. I am hoping that it can inspire to figuring out even better ways. Suggest a way that will not work and then hope to create discussions in finding a way that does..:)
What about a "more" trigger that when toggled on, reveals any additional controls?
Here's a super quick Figma prototype →

Looks good to me! That would work even better.
Let's close this issue and open a new issue suggesting it.
I'll close here, and if that's alright then you can open a new issue adding the Figma image.
Thanks Rich.
I went ahead and opened this issue: Link Control: Add more controls.
https://github.com/WordPress/gutenberg/issues/23011