Hi
I am Dave, an Independent Advisor, I will help you with this . . .
If you Google any file online, you will always find a website that will list the file as malware, that type of website cannot be trusted
The WindowsApps folder on Windows 10 is the most secure folder on a Windows 10 system, it is used to hold the Microsoft Store Apps and Games, the reason it is so protected is to ensure the integrity of those Apps and Games
The file you list above is the Microsoft Solitaire Collection game that comes pre-installed on all Windows 10 systems and it is totally safe, some 3rdparty security utilities are unable to scan inside the WIndowsApps folder, and this is nothing to worry about, because that is protected by Windows 10
do you know why it's still there? Again it may not be a virus but still why are the files there