You don't have to find jack shit. I've never collected the 100 feathers in AssCreed II. It sounds obnoxious and boring. I've done the same with countless games. It's optional content for a reason. You literally get nothing from finding the seeds, it's there for the absolute most autistic people so they can explore the world. Beating all the shrines to get the (very underwhelming) Wild set is the actual completionist sidequest. The Korok seed shit doesn't even matter, anyways, it's definitely not what factored into me considering BotW a disappointment. The overabundance of combat shrines definitely did.