To display your statistics, you need to extract them, please follow instructions below.

Steam

Steam

If you play the game through Steam, you should find your statistics file at path:
<disk>:\Users\<username>\AppData\Local\Back4Blood\Steam\Saved\SaveGames\PlayerProfileSettings.json
Xbox Game Pass

Xbox Game Pass

If you play the game through Xbox Game Pass, you should find your statistics file somewhere in:
<disk>:\Users\<username>\AppData\Local\Packages\WarnerBros.Interactive.<some key>\SystemAppData\wgs\
Please note that Xbox Game Pass stores your files differently (within sub folders), so you'll have to try several files until you have it displayed.
Epic Games

Epic Games Store

If you play the game through Epic Games Store, you should find your statistics file at:
<disk>:\Users\<username>\AppData\Local\Back4Blood\Epic\Saved\SaveGames\PlayerProfileSettings.json

Please note that Windows hide some folders by default (AppData being one of them), if you can't see it, show hidden folders in your Windows settings.

Drag & drop file here or click to open new window