Not really. Designers expect prettier designs than standard GUI widgets, I'm not convinced users have ever wanted non-standard widgets. In fact, more than a decade of bitching-about-java has taught me that users hate non-native widgets. But hey, developers love them so fuck users.
Native widgets play significantly better with all accessibility tools, in part because native widgets are so customizable. You didn't need bespoke "Dark Mode" that was some designer's wet dream of what an interface should look like, you could just customize your widgets for what you needed: https://66.media.tumblr.com/19cb7fe3e0eef36debbd0167d6e6e0ea...
Native widgets play significantly better with all accessibility tools, in part because native widgets are so customizable. You didn't need bespoke "Dark Mode" that was some designer's wet dream of what an interface should look like, you could just customize your widgets for what you needed: https://66.media.tumblr.com/19cb7fe3e0eef36debbd0167d6e6e0ea...