Google Search Results page displaying domain name as site name

Hi,

In Google Search results page, my website is showing the domain name instead of the site name.

So for example, my website in the search results shows up as:

—–

mywebsite.com

https://mywebsite.com

Welcome to My Website

Description displays here….

—–

So, where do I change the site name (the words that display to the right of my favicon)? I’ve tried in wordpress under appearance > Customize > site identity but that hasn’t worked.

Thanks in advance.