Is there any way to find out why Google does not want to index the site?

Question

Search Engine Optimization

A little over a month ago, I added my new site to the Google console and Yandex webmaster (about 400K pages).
Google has only indexed the main page so far.
Yandex has indexed almost all pages, some have already been brought to the top for testing.
Initially, at the request "site:mysite.com" the main one also got out, but the description in the snippet was not displayed, since the site was closed from indexing. Now the description has appeared - that's all.
Sitemap loaded everything (no more than 50000 urls and no more than 50 mb).
Screenshots from google search console:

Answer 1

you didn't provide your website address or information from the google console, what do you expect to hear here?
My answer is simple - Google did not like your site, because. the stars are wrong in the sky.

Answer 2

What does the google search console say?