"page.window.visible = True" doesn't work in Linux

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Describe the bug

When I use page.window.visible = False the page is hidden, but after using page.window.visible = True it doesn't reappear, although the code still runs normally. Not even using page.window.maximized, the page won't be visible anyway. In Windows it works well, but i have tried in Ubuntu, Fedora and Mint, and it never works. There are no error messages

Code sample

from time import sleep

import flet as ft

def main(page: ft.Page):
    page.add(ft.Text("Hello!"))

    sleep(3)
    page.window.visible = True
    page.update()  

ft.app(target=main, view=ft.AppView.FLET_APP_HIDDEN)

To reproduce

When running any code with page.window.visible = True the window won't appear, but there's no any error message

Expected behavior

No response

Screenshots / Videos

Operating System

Linux

Operating system details

Linux Mint 21

Flet version

0.23.2

Regression

No, it isn't

Suggestions

No response

Logs

[Paste your logs here]

Additional details

No response

Start by running the provided Python example on Linux Mint, Ubuntu, or Fedora with ft.AppView.FLET_APP_HIDDEN and tracing page.window.visible before and after page.update(). Compare the Linux behavior with Windows and inspect the desktop window-visibility entry point. Done means a hidden window reliably reappears on Linux without errors.