If working *at home* is objective, as it was for me, there is equipment that can be bought to do the major/popular barbell strength traing programs, such as, Strong Lifts and Starting Strength. I use a 7-ft standard bar, one-inch plates, a pair of safety stands, a simple bench, and 1-in thick floor mats. I also have a "Door Gym," which adds to my arsenal.
I had considered doing dumbbell-only exercises because going to the gym doesn't agree with me at all. But, it seemed to me that there had to be a good reason why barbell-based workouts are considered the gold standard. It's not as if other methods are not viable; it's a matter of which is more efficacious/efficient.
These are only my thoughts/opinions. I mean no disrespect for other viewpoints. And, I continue to learn . . .
Whatever you choose, I wish you good luck.