How do you decide which feedback to use?

Categorise them into urgency, impact, relevance, and feasibility criteria. Check if these criteria align with the product/company vision, strategy, and objectives. Score the feedback based on the above criteria and objectives. Gather thoughts from important stakeholders from different teams. Some feedback would need additional validation; in that case do A/B test.

Focus on recurring themes from multiple users. Prioritize feedback aligned with your vision. Can't please everyone.

I prioritize feedback by first checking reviews with 1 to 3 stars. I read all of these thoroughly because they often highlight specific challenges or difficulties users face, which helps in understanding areas that need improvement