Regarding the old issue #328 there is a problem that if the user is not logged in API responds with a 401 error.

Google uses a lot of metrics to range sites. And now, not only Page Speed matters, but also user experience. More info:

• https://developers.google.com/search/blog/2020/11/timing-for-page-experience
• https://developers.google.com/search/blog/2021/11/bringing-page-experience-to-desktop

Using https://web.dev you can check the issues you have on the page. That's the new google page speed.
Logging errors to the console is one of the official issues.

Example for page https://radio-t.com/p/2021/11/30/prep-783/:

p.s. Also, some other console/SSL errors found on this site relates to not using GTM Server Side. Some of them you can fix with the correct policy headers, but not all of them.