Products are formed by the combined wisdom of various technology stacks, so product quality should also be formed by the combined force of various technology stacks
Some companies have strong R&D capabilities, and the R&D department, as a legislative body, defines quality standards. The quality department, as a procuratorate, supervises whether production is "illegal"; Some companies are led by the quality department to determine, or directly provided by customers
I think it doesn't matter who makes the decision
But it should go through internal formal evaluation and be standardized by all parties;
Quality personnel should also provide supplementary opinions based on user experience, mandatory requirements, etc