Module development and code questions

Hello, everyone,

I haven't used Drupal for a long time, but I still have an old Drupal 7 installation with the Porto theme.
I would like to deactivate the loading of Google Fonts there, but I don't know where else to look. Where could the Google API be hidden?

In the template.php I deleted the following lines

Hello.

I would like to know how can i create a custom pattern for this module.

Im working in a commerce that have two kind of price one is for particular and the other one is for profesional.

i would like that in the invoices have the next format: 22ES-P-00001

22: Is the two digits of the year.

ES: Is the country code.

P: Could be P for profesional or A for particular depend of price.

00001: The order number.

Not sure if i can do it with code or without code.

Thanks in advance.

In Drupal 7 you could create an entity using custom module, and use hook_node_info() for it to show up under Content > Add Content menu.

Drupal 9 has the same hook, but doesn't seem to work the same way.

Am I missing something?

There is a configuration item called "no_cache" in the option of the module's routing.yml.
If set to "TRUE", it is defined as a non-cacheable route, is this valid for both "Internal Page Cache" and "Dynamic Page Cache"?

( ref. Structure of routes | Routing system | Drupal Wiki guide on Drupal.org )

I am new to Drupal and was tasked with the project or upgrading a website from Drupal 8 to 9. I was able to get the site up to 8.9 with php7.4, but I am having problems going from 8.9 to 9. I run the Upgrade Status report before and made sure to update all the modules with composer, but I am still getting this error when visiting the site after install 9.4.3. Again I am very new to Drupal so if this post is in the wrong place please let me know!