Bro Split vs PPL for a beginner

Recently started gym and made a workout plan through gpt but trainer told me that it was the worst ever plan for me and that I should be only sticking to bro split.

Focusing just on one part a day , Monday:- shoulders, Tue :- chest as such. Currently I'm doing 30 mins of cardio and 3-4 workouts in rest 30. Many youtube channels are saying that bro split is not effective it's just for name sake workout and ppl is better .

So as a beginner should I be following bro split or ppl any help and information would be appreciated.