That was one of my fears as well. Thankfully, the issue is so wide spread that they are replacing them outright even after the warranty has elapsed. Sony WF-1000XM4 has an issue where one of the buds drains 5 times faster than the left. Started with firmware 1.4 or 1.4.2.
Kind of? If that makes sense. It's less a feeling of accomplishment and more relief cause it isn't hanging over my head anymore.