You remove the default, replace with your own version with the new permissions :-)

The my-version would be something like:

[Weight(21)]
public class MyRedirectUrlDashboard : IDashboard
{
    public new IAccessRule[] AccessRules => Array.Empty<IAccessRule>();
}

It would need to implement a new accesrule

Managing urls is a content editor job :-)

Agree - this is also causing our site issues - see here on how to restrict this dashboard to certain user groups only (e.g. Admins only)

Agree.

Our content editors can barely do content editing (I'm constantly having to clean up their pages with copy/paste detritus, incorrect heading use, etc. even though they do receive training). They have no idea what redirects are and no interest in learning. Anything much beyond editing text, and they'd submit a ticket to our help desk and it would likely come to me.

Understand, these folks are, for example, court clerks or judges, some quite advanced in age. While a few are pretty savvy, some are still struggling just to use the Internet; some don't know what the word browser means, much less redirect. We went with Umbraco because one person cannot possibly maintain the content for 10 websites and thousands of pages for scores of courts, agencies, commissions, committees, and other organizations, while also developing new applications. And "just hire more people" isn't an option; not in a state agency. So we have to let them edit their own content. But for most, their understanding is extremely rudimentary and they are confused and some a little angered by that dashboard.