Does anyone know anything about these programs?

Epic game launcher is a game store and client, like Steam.
Coco thing:
https://www[dot]cocos[dot]com/en/products

used Bing easily to find out about them.

(although I personally had experience with Epic game program)

they are different companies than Microsoft, Microsoft don't sponsor them and neither do Linux.

you can make sure your Windows is up to date and then perform a full computer scan using Windows Security (Defender).

Windows Security also has options for "Potential Unwanted App" and "Potential Unwanted download" blocking, which works best with the new Microsoft Edge browser.

if you want to test programs, i suggest using Windows Sandbox, that way your main system will be unaffected:

https://docs.microsoft.com/en-us/windows/security/threat-protection/windows-sandbox/windows-sandbox-overview