I understand where you're coming from, but at the same time it's a feature defined as a finalized spec in the Web incubator. Even if it's currently implemented by one engine, 1) that engine is used in browsers from many different vendors - Google, Microsoft, Samsung, etc. which represent a huge chunk of the Web and 2) there's still hope that other browsers will implement it in the future.
For example, File System Access API was also part of WICG and similarly deemed by commenters as Chrome-only API because it implemented it first, but is now at least partially implemented in Safari 15.2. Who knows what we'll see adopted next? As long as there's a Web spec and apps using an API, browser vendors can prioritise.
For example, File System Access API was also part of WICG and similarly deemed by commenters as Chrome-only API because it implemented it first, but is now at least partially implemented in Safari 15.2. Who knows what we'll see adopted next? As long as there's a Web spec and apps using an API, browser vendors can prioritise.