Why does the old title still show up in the tab of the site homepage when I open it after changing the site information?

When you have modified the site icon, site logo, site name and other information, but the old title is still displayed when you open the site, this situation should be: ignoring the modification of the“Optimized for SEO"

As shown in the picture, we can see that the information of this site has obviously been changed to "HelpLook | help center" . When we open a new tab , the old title of "helplook test" is still displayed. How did this happen?

In fact, the "Website Title" in "Optimized for SEO"" forgot to update synchronously. Just enter a title name in the box that matches your new site and click the bottom right "Save" then the problem will be solved.

Effect after modification: