Hello, Himanshu Acharya (CS)
Welcome to Microsoft Community.
The above steps you provided are correct for solving the problem in 5GHz WiFi Not Showing Up In Windows, this should also take into account the adapter if possible, the following solution from Greg Carmack Independent Advisor may add more details.
How To “Fix 5GHz WiFi Not Showing Up In Windows 10” Issue - Microsoft Community
Best regards,
Chandy |Microsoft Community Support Specialist