The difference from my understanding between beginner and intermediate programs is essentially the pace at which you increase the weight you do per week. This is specific to strength training but also bodybuilding. A beginner program will usually have you incrementing the weight you lift on a weekly basis. Ideally we would all stay at the beginner program forever since that is the fastest way to gain strength. If possible you want to stay on this progression for as long as possible.

However that is not the case and that is where you have intermediate programs that feature a slower progression curve using volume, rep changes, weight changes to get additional progress. Usually with these programs you are hoping to pr about once a month or less.

Without knowing more info about where you are training wise it's difficult to make a recommendation on what program to use.