What if I want to check my profile page on Medium while writing an article on Medium?

What guarantees it? The well-planned design… seriously, on a website such as Medium, such scenarios should be accounted for.
I still believe it’s a workaround for a problem that should be solved by the provider of the experience, not by the user. I just don’t find it convincing enough.
The different environments you discussed, well… again, it’s something a designer should consider, so the user doesn’t have to think what’s the best choice.

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