who is the strongest person in the world
There multiple possible answers to this question depending how you define strength

if it is physical strength in term of lifting weights, one possible answer could be 
Ray Orlando Williams who is currently the world record holder for performing a squat with a weight of 490 kilograms
if it's strength in terms of combat - it is likely that the current UFC heavyweight champion in mixed martial arts combat - Francis Ngannou 
if it is political strength, it is likely the leader of the strongest military - the president of the united states, Joe Biden

These above answers are correct as of December 2022

There are multiple additional ways in which one could define strength, it will help me if you be more specific
i define stregnth in this instance as the greatest lifting capacity naturally acquired without drugs.
In this case, the competition named World's strongest man could have the answer for this question. According to them, the world's strongest man as of 2022 is Tom Soltman.