During a Champions Tour tournament in October 2019, Billy Mayfair was searching for his ball in high rough. Many spectators helped him and he found his ball.
You will see in the following link all the facts related to that incident.
What is important to remember is that the original ball is lost when the search is for more than 3 minutes.
It is the responsibility of the player or the caddie to make sure the 3 minutes is respected.
When I see player looking for a lost ball, I always have the reflex to start my stopwatch. Often the player will ask me if the 3 minutes is expired.