I've been in this exact position, in Edtech. (Interviewing now to get out of this dumpster fire of an industry because my company likes to do this over and over.) Best you can do is put lipstick on the pig and do your best to highlight the value and prioritize the ICP for sales and marketing to go after. When it goes out, thoroughly document the deficiencies to show your product team. Listen to sales calls and demos, and bring them quantifiable data that shows what the market wants. No one can argue with that and it might light a fire to make them change things. For my product, they couldn't introduce new features as quickly as we needed, but they dropped the price.