The episodes are stylized as such on the AMC website but for some reason, the AMC website capitalizes every word in the titles (this is for every show, not just this specific show) so the only way to view the actual episode title with stylization is to use the Inspect function of whatever desktop browser you're using.

Compare the title that appears when using the Inspect function on an episode of Interview with the Vampire vs doing the same with an episode of the Mayfair Witches.

The AMC+ website shows the same episode title stylization that is also used on the AMC and viewable when using the Inspect function but their runtimes are longer since they include some "Inside the Episode" BTS content that is not present on the AMC version.