The .com domain extension is a brand by itself. A .com domain is the default domain extension on the internet.
The benefits from a .com domain:
Familiarity: People are familiar with the .com extension. The .com extension is used by most brands and websites that they trust. It is a subtle indication that your business is legitimate. The NCC Group, an international expert in cybersecurity risk mitigation and risk management, recently found that nearly half of consumers don’t like websites that end without .com extensions. Only 9% do.

Top Brand Protection: You have the official online version when you own the.com domain version of a name. A.com version that is exactly the same as yours can help protect your brand, since it is unlikely that another serious business will use the same name after the.com extension has been taken.

Simple to Communicate: The .com domains can also be used to communicate. People will assume that your business name ends in .com extension if they don’t see a TLD. This makes it easier for them to find you online.