I don’t think it really makes sense to say which doctrines receive religious submission, but rather which acts. Doctrines are classified with their degree of certainty which indicates how we assent to them–“of faith,” “of ecclesiastical faith,” " proximate to faith," “theologically certain,” “common teaching” “safe,” “probable,” etc. (there are also corresponding negative notes and censures).
Theologians used to work with these notes, and you can find which notes apply to which doctrines in the old manuals. One criticism of the Catechism is that it doesn’t provide these notes, even though it includes doctrines in various categories (to be fair, catechisms traditionally don’t do this).
The absolute assent of divine faith is due to what the Church proposes as revealed truth, and revealed truth never changes. Those doctrines which are proposed by an act which guarantees this level of certainty are therefore due this absolute assent.
Religious assent or submission, on the other hand, is essentially the respect the divinely authorized teachers are due from those of us they are authorized to teach. Every act of teaching for these teachers is due this, whether they are trying to give us a better understanding of revealed truth or are addressing contingent matter or intervening in the prudential order. We are to adhere to what is taught by these acts in the manner the teacher intends us to (the intention for an absolute assent would be manifested by a definitive judgment, for example). Pope Francis, for example, in his encyclicals and exhortations tends to do a really good job of laying out his intentions in an early paragraph (see e.g. Evangelii Gaudium 16-18 , Laudato Si 15-16, Amoris Laetitia 6, and Gaudete et Exsultate 2).
We must of course give the authorized teacher the presumption of truth and give our due effort to internalize it in the manner they intend, but the the degree of certainty of the doctrines taught depends on the doctrine at issue and how the teacher intends to teach it. And depending on how often and in what manner a doctrine is taught by the authorized teachers, it can increase in certainty.
As a random example, take Pope Benedict XVI’s exhortation Sacramentum Caritas, promulgated after consulting in synod with various bishops. It contains no definitive or infallible judgments, but as an act of an authorized teacher, it deserves that religious submission. However, in it he teaches many doctrines on the Eucharist which the Church has always proposed as revealed, and these doctrines must of course still be believed with faith.