If you want to buy wireless earbuds, you have an incredibly wide choice. Many of the wireless audio brands also make smartphones. Their position in the smartphone market seems to dictate how their wireless earbuds interact with phones from other brands.
When the bluetooth earbud market boomed a few years ago, Apple was back on track to make some AirPods features only available on Apple products, and it still is. The question then was whether other manufacturers would do the same and try to sell their own earbuds with their phones by giving them exclusive features, thus creating a lock-in effect.