Unfortunately, none of these suggestions above would work. Here’s why:
rel=“nofollow” matters to search engine bots, and these bots evaluate HTML source of the pages before scripts are executed (this happens in page visitor’s browser).
So, if you look at the source of the page with this solution the links would NOT have rel=“nofollow” but if you inspect the link element in Chrome, you would see rel=“nofollow” as it’s been injected by script during page load and rendering.
So it looks like Webflow needs to add the ability to mark links “nofollow” in CMS rich text editor!