Bud from a seeded regular female is still usable, though it is airier, less resinous and picking seeds out of every nug gets old fast. The plant puts its energy into seed rather than trichomes, so expect lower potency and a harsher burn if any seed cracks during grinding. Ideas for putting that harvest to use, mostly extracts and edibles, are shared on https://breederregularseeds.com by people who have done more seed runs than me. Nobody breeds for the flower on the mother plant, so keep expectations modest.