If they can prove enough similarities or overlap with their brand, they’ll find the way. And since it targets macOS/iOS specifically, there you go.

Als considering that Apple probably has Apple Intelligence trademarked

Right, and if it were called IBM AI, they’d get a letter from IBM instead. You can’t just tack something onto the end of a trademarked brand name.

IBM and Apple are company names, which means the intent to mislead can play a role during legal proceedings. Compared to banning the use of "Swift" in any phrase or sentence by any future company for the foreseeable future.