Cannot setup root domain with A type record in godaddy

**Describe the bug**

I am trying to add custom domain to my Static webapp and I was almost succeeded, but while try to setup root domain by adding ALIAS record in domain provider I couldn't add since godaddy allows only IP address in A Type record.

I pinged my static webapp url and added that IPv4 address to A type record in godaddy but it didn't work (actually it worked for few minutes where I can go to my site without 'www' but after few minutes nothing worked even I cannot access the site with www).

I am referring this video for my custom domain setup -> https://youtu.be/SpQgKfJ87fE?t=210

**Expected behavior**
I would like to have my custom domain to work without "www" in the url.

**Screenshots**

Thanks in advance