Hello Nandish V,
Thanks for your question.
I will recommend you use the Azure CLI to write the config of each function.
az functionapp config show --name <func> --resource-group <rg>
This will compare both. When you see the attribute differences. You can then review your state file or terraform plan to check.
You can also make the manual change to the tf deployed app and try to import or run a plan to achieve the above as well
You can mark it 'Accept Answer' and 'Upvote' if this helped you
Regards,
Abiola