Yes, and often incomplete or not maintained.
Anyway, OP read different sources about OOP and still needs to ask the definition… At some point it is better to just do something than to keep banging your head at the theory. If learning to code is your endgoal
I think it is a combination of plastic surgery, ozempic, bad eating habits, drugs and constantly going up and down in weight (his clothes don’t always fit). You never know what shape he will be in at his next public appearance.