103.7 KOSF is a Classic Hits station. Has some 70s and 90s mixed in. It just has 80s-based branding.

It will be quite awhile before 80s is removed from these formats. Audacy is quicker at adding 90s than iHeart is in most cases.

The average teenager in the mid 80s is either just at or aging out of the 25-54 demographic. The most they'll do is gradually reduce it. The 80s will likely have more time than 60s did for example, since radio's audience in general is aging more than it was when they removed 60s.

90s-based formats have been tried but the ratings have not been very good. WSHE is an example here, but there's other reasons for that I'm pretty sure.