The location for changing the site logo depends on your theme design.
The location for changing the site logo depends on your theme design, but in most modern themes, this can be done through the site settings:
Go to Settings > Site Settings from the admin menu.
Navigate to the Site Info tab.
In the Logo section, you can upload your new logo file.
Save the changes. If the logo doesn't update using this method, your theme may use a different approach. In that case, refer to your theme's documentation.