The same question as an ordinary naming check - with a completely different answer, because the risk was different.
Whether the check would treat an active registered trademark differently from a generic naming convention - with real urgency, rather than a soft "similar to" hedge.
Closest matches
The gap
The core issue is not creative originality. It is trademark conflict. Using "Westfield" for a shopping center you do not own would likely draw a cease-and-desist regardless of styling.
Verdict
This is not a derivative-idea problem, it is a live trademark collision - the gap above is not optional polish, it is a rename.
Compare the language here with the Xantheon result. That one said "90% a category default." This one says "a live trademark collision" and "not optional polish, it is a rename." The severity of the wording changes because the category of risk changed.
That escalation only fires when a match is an actual specific name or brand in active use in the same category - not when something merely shares a theme or a trope. Over-flagging ordinary similarity as legal risk would make the warning meaningless.
Worth being clear about the limit: this identifies an obvious collision. It is not a registry search, and it does not replace one. Where a question genuinely turns on formal registration, Synorigin says so and names where the authoritative check happens.