Nevertheless, here are few steps you can try to restore the missing Bluetooth icon in Windows 11/10/8/7

Bluetooth icon not showing in Windows 11/10

In Open Settings > Devices > Bluetooth & other devices. Here, make sure that Bluetooth is turned On.

Then scroll down and under Related settings, click on the More Bluetooth options link to open the Bluetooth Settings. Here, under the Options tab, ensure that Show the Bluetooth icon in the notification area box is selected. Click Apply and exit. Windows 7/8 users may type “control panel” in the search box of Windows 10. Next, type “change Bluetooth settings” in the Search Control Panel field at the upper-right of the Control Panel When you do so, Change Bluetooth Settings link should appear under Devices and Printers heading. Click the link to open the Bluetooth Settings window.

Under the Options tab, check Show the Bluetooth icon in the notification area option. Click OK and restart Windows. The icon should reappear the next time you log in.

If this does not help you, there is another thing that you need to do, and that is to check if the Bluetooth Support Service is running on the computer To do so, type services.msc in Start Search and hit Enter to open the Windows Services Manager. In the list find Bluetooth Support Service and double-click on it. Ensure that the Service is set to Manual (Trigger Start) and Started.

Now check if you find the Bluetooth icon in the Notification Area. Hope this helps. See this post if Bluetooth is not working.