Module development and code questions

SDK: https://affiliate-program.amazon.com/creatorsapi/docs/en-us/get-started/...

I work on porting this contrib: https://www.drupal.org/project/amazon_pa

• Amazon has an official SDK for its api. 
• I loaded the sdk into my module and it works so far.
• The SDK uses own stuff installed by composer

Loading is simple:

I have created a view (API endpoint) to fetch logs via an API. Now, I want to configure a rate limit for this API.

For this, I followed the Drupal documentation: https://www.drupal.org/project/rate_limits and downloaded the rate_limits module (https://www.drupal.org/project/rate_limits/releases/2.0.2).

Tagged routes - This module is for Drupal 8/9.
Is there anything like this module for Drupal 11 or how can we add tags to api routes in Drupal 11?

ERROR
preg_match(): Passing null to parameter #2 ($subject) of type string is deprecated StreamWrapperManager.php:294

CONTEXT

What module is this a bug in? I hope this is the correct forum to ask this.

This system looks broken

Android, Google Pixel 7a 

Also not clear how the elf to upload an issue screenshot. LoL 

And this isn't even the issue I'm here to check on or create. 😉🙄🤐