How to backup android with preinstalled apps?

Question

Android

Good day. Today I would like to talk with you about such a topic as backing up the android system with applications and settings preinstalled by me.
Let's say I reset all system settings, after it all caches, all unnecessary files were deleted and the system began to work much faster and more stable. Next, I install the most necessary software (browser, instant messengers), log into my accounts, set up the phone in my own way, and after that I want to create a file of this entire system, which I will upload to Micro SD and, if necessary, I can reset the settings again and recover from this copy for in order not to re-install and configure applications.
How can this be implemented? And is it possible?

Answer 1

Without root, in any way, just put everything from the store with pens. Most likely ideology does not allow this.

Answer 2

Titanium backup, but you need root to restore system settings.
Also, if there is a custom recovery (for example, TWRP), you can make a full backup of the / data partition in it (all settings and applications are stored there) and roll it, if necessary, from the same recovery.

Answer 3

You need to take the nth-child out of a because you need a third .item, not a third reference.