Well, you should not train LIKE a power lifter (getting stronger at the bench press, dead lift, and back squat). But, if you’re asking if you should use the lifts powerlifters train for, then definitely yes.
Any program that relies on relatively heavy lifting of compound movements raises metabolic demands, and hence the fat sheds off. Combine a program like the “Big Three” (Bill Starr) or “Next Big Three” (Chad Waterbury) along with some HIIT and/or GPP, and the fat loss does come along with the strength increases too. Otherwise you can do straight maintainence with a few compound lifts and then go all out with all forms of cardio.
If you want both strength, mass, and fat loss all at once, it can come, but it’s a rather slow process.
Honestly, it took me about two years to drop seventy pounds of body fat, put on roughly 20 pounds of lean mass, and increase my strength levels big time… It’s a slow, but definitely satisfying process.