Fedora 44 KDE
Tixati : 3.44.1

When one opens the file browser for what ever reason, like to select download path, or anything really, we cannot see the other partitions ( other than our system partition where fedora or any distro is installed).
So the problem is in the file browser itself, i think there multiple options to use and i have encountered this before in other softwares as well. To fix this is think you need to use the native file browser instead of whatever u have right now.

As you can see in the screen shots, My other partitions dont get listed in the other Locations as well.

https://ibb.co/4nr9j9p3