it's not the singular vision of one man
Indeed...as so few things truly are. Browning borrowed ideas from other people, the same as others have drawn on his.
What is the Model 92/94 carbine except Christian Sharps' falling block action with a sliding breechbolt added?
Glock's striker-fired pistol? Go back. Way back to the Grande Rendement...and even further to the Luger...and then back to the Borchardt.
Nothing new under the sun, it seems.