Also I have a question: how can I get the information about the indexing of my games? How did you take those info?
Search your username in the search box. You must do this on a logged in account that has adult games active.
For a non-generic username like your's, your games should appear first in the results.
If you updated your games with a vpn, they might even be in quarantine. But either way, Itch staff will have to have a look and there is a waiting time and holidays are coming. I would not count on being visible before the next year.
But this does not hinder your marketing efforts much. Linking and visiting and playing your browser games works unimpeded.