What should i learn to make apps like facebook ,sololearn and games like pubg ,free fire and more?

Question

I'm recently learning c++ in sololearn

Answer 1

Pubg and free fire games are created by Team not individual person. And lots of programming language are included in this like game.
You can Create simple game but you can Create a like pubg game so lots of knowledge of programming, graphics, design knowledge required.

Answer 2

ANDROID:
JAVA
KOTLIN
PYTHON
IOS :
SWIFT
Objective-c(game)
Windows:
c++
C
but if you use fisrt search bar you will get more don't make duplicates

Answer 3

I think Pubg and facebook written by C++ and in my opinion C++ is a good choice but you cant created games like pubg alone