The 1.5C target (which, as others pointed out, is not an end-of-the-world scenario) is about average temperature above pre-industrial baseline across 20 years. The temperature anomaly of a single year has nothing to do with that; 2028 will likely be colder again.

Average temperature moves in cycles. By confusing single-year temperatures with the 1.5C target, you're just going to make people think "crisis averted" once 2028 turns out to be cold.