https://screenrant.com/frasier-best-supporting-characters/

All iconic sitcoms have great main casts, but few other sitcoms had a supporting cast of characters that were as well-written as Frasier's.

To me it's literally the show's worst aspect.
90% of the recurring characters are unbearable: Bebe, Donny, Bulldog, Daphne's mom and brother... really hugh.