Set specific style for links from Gutenberg, without code

[T4ngml]

I'm looking for a way to let my (non-techy) colleagues writting posts in our WordPress, and design them the way they want easily... on their own!
This used to be difficult with the classic editor, but got a lot better with Gutenberg over the time. But I'm still missing something: styling links without HTML customization.

I need a couple of different styles for my inks:

• standard internal links
• anchored links
• external links (to another website)
• button styled (but not proper buttons) links embedd insite a paragraph

I want them to look different.
Right now, if I want to do this , I need to:

1. Select the text in the paragraph > click the link icon > add a custom link > validate - that part is all fine
2. Click on the link again, > 3 dots button > Edit as HTML >
3. ... and for each link I want to style, customize the tag with a class="my-custom-style-class"

While WordPress claims to be affordable, this is way too technical for many users. Not to mention missing a single quote in the HTML will break the whole paragraph, and require the user to write it all again. Only because s.he attempted to style a link!

Some will say a link is a link, and that I should basically set my CSS to style the links automatically.
But I'd argue such styles help the users better understand how to navigate across the website, and makes the website more usable.

There are indeed CSS tricks to target specific links, and set specific styles for them. But at some point, I might want a bit more possibilty here -let's say, something as basic as setting a different color for a dark background area-, so that advanced CSS class are not the solution.

Some will also say that adding this option would overload the Gutenberg interface with something too rarely used.
Then I don't understand why WordPress offers native toggles for nofollow links, even sponsored links, which are quite technical attributes for links and are often misundestood and misused.

The way I see it, would be to offer the capacity to set a couple of styles (class / label) from a dropdown list.
And if this is too much for many users, that's something I'd be happy to activate through a wp-config parameter.

This has already been somewhat discussed here, but I didn't see a positive outcome to the question, at least not on that specific question. The issue was even closed.

@sarahmonster explained:

The overall consensus was that we're not sure this is a common enough use case to warrant introducing additional complexity to the interface. WordPress' philosophy is to "provide features that 80% or more of end users will actually appreciate and use", and we're not certain if this is a common enough action that 80% of users will use it.

I must say I really can't figure which 80% users take more advantage of nofollow and commercial links settings, compared to this...

What do you think?

Thank you!