I do see a difference in them, although nothing startling.
I think the Browning feels heavier and bulkier, but swings smoother.
The Beretta seems to have a smaller receiver, but is 'livlier' and points just a tad quicker. Note I didn't say better.
I own both and depending on my mood or how I hold my jaw, one will shoot better today than the other.
As for construction, I see very little difference in quality. I shoot every week, maybe only 100-200 rounds max. Neither shows any appreciable wear. I expect my great grand children to be able to use them.
Both very fine guns.