It's 2023 and smartphones can't even properly upload files in background.

When an upload is running in background while I watch YouTube or use other apps, the upload just stops at some point. The speed indicator in the top bar goes down to a few KB/s and I know immediately the upload has stopped well before it could have finished.

When re-opening the tab, I see a blank page and a loading bar. This means the tab has unloaded. Now I will have to re-select all those files again, which comes with its own troubles ( https://devrant.com/rants/9879401/... ).

Mobile browsers need to have a "protect this tab from unloading" option. Samsung already introduced a "keep open" option in the task switcher to protect individual apps from unloading in background. Why not do this on tab level?

Once the user locks their screen, this alone might interrupt the uploading process. On laptops and desktop computers, the upload keeps running in background.

Come on, this should be as easy as childs' play for billion-dollar corporations. Aren't smartphones "smart" enough to detect that a page is currently uploading files so its tab is not unloaded?

If smartphones can not accomplish this simple task that desktop computers and laptops can easily handle since the 2000s, it is a sad and embarrassing state.