Been wanting this for a long time. After being spoilt with my iPad I noticed that on iOS the nav bar is transparent on every single app.
I understand that on Android it's up to the app developers so I'm hoping stock in-house Samsung apps like Settings, weather, Samsung Internet etc will bring transparent nav bar with One UI 3.
Some people may dislike it but apps like Reddit, Discord, YT Music, Shazam, Google Photos and Google Drive and many more already support this feature. Also noticed when using Google Pixel 5 and OnePlus that their stock apps eg settings or OnePlus gallery app already has transparent nav bar, it looks cool and professional but just seems Samsung is lacking behind.
Imagine scrolling through Samsung Internet app and having transparent nav bar, it would look so cool like iOS Safari app!
The professional term for transparent nav bar is 'Edge to Edge' support, so if anyone Samsung Dev is seeing this here's some vids discussing on Android Developers YT channel: