The reason is, that Facebook acquired the company "Oculus" some years ago and now changed the name and also the cion of the application.
Here is the new icon:

If you open the app, go to the settings --> common, then you see the new name (and also the version number):

Version der Meta Quest Link-App 65.0.0.499.343 (65.0.0.499.343)

Here the information extracted from the EXE file:

File name and path:     C:\Program Files\Oculus\Support\oculus-runtime\OVRServiceLauncher.exe
Product Name:           OVR Service Launcher
Internal Name:          OVRServiceLauncher.exe
Original Filename:      OVRServiceLauncher.exe

File Description:       OVR Service Launcher
Company:                Facebook Technologies, LLC
Legal Copyright:        Copyright (c) Facebook Technologies, LLC and its affiliates. All rights reserved.
Legal Trademarks:       
Comments:               

File Version String:    65.0.0.499.343
File Version:           65.0.499.343
Product Version String: 65.0.0.499.343
Product Version:        65.0.499.343