Minimum system requirements indicate Windows 10 only, but the game runs fine on Windows 7 (tested it myself). On some older Win7 systems, the system library wbemcomn.dll needs to be replaced with the latest version available, or the game will crash at launch.
Talk:Yakuza 6: The Song of Life
Works on Windows 7
System requirements on PCGW are always based off the official ones, indicating what the developer tested the game on and what configurations are officially supported. W7 can probably run lot of games despite that, but since it's no longer supported by Microsoft it makes sense it's not accounted for anymore.
This is nothing against your solution to make it work, just clarifying that system requirements as they are right now are fine and shouldn't be changed. If you want to add it as "Issues fixed" that's probably fine I think.