Indeed....a Sam Browne belt used to be a wide belt supported by a shoulder strap.....but the shoulder strap has mostly disappeared now for safety reasons. But police officers still call their duty belts "Sam Brownes", which refers to a 2.25" wide leather duty belt with a two prong buckle, and which is used to carry their equipment (I used to work in law enforcement myself).
Here an interesting article about it.
https://www.policeone.com/police-products/duty-gear/articles/117535-Sam-Browne-and-beyond-A-look-at-duty-belts/
Those belts are like a do-it-yourself construction package: You can easily add and remove those holsters and pouches that you need. The belt is generally worn with beltkeepers over a smaller under belt. On my belt I currently wear: flashlight, pocket knife, D-ring (for large flashlights), key holder, cell phone, small first aid-kit and optional water bottle.
I personally prefer the look of this wide leather belt, especially with a uniform, rather than nylon or webbing belts or putting everything on my pants belt.
But maybe to some it also looks 'overdone' or screams too much 'POLICE'. Just curious about your opinions and if anybody else wears those Sam Brownes.