Icons for proprietary software in contrib package

I am planning to package this app
https://github.com/Faugus/faugus-launcher
Code is Expat licensed but assets/ includes icons from proprietary
game launchers. These are:
https://github.com/Faugus/faugus-launcher/blob/1.18.2/assets/faugus-battlenet.png
https://github.com/Faugus/faugus-launcher/blob/1.18.2/assets/faugus-ea.png
https://github.com/Faugus/faugus-launcher/blob/1.18.2/assets/faugus-epic-games.png
https://github.com/Faugus/faugus-launcher/blob/1.18.2/assets/faugus-rockstar.png
https://github.com/Faugus/faugus-launcher/blob/1.18.2/assets/faugus-ubisoft-connect.png
https://github.com/Faugus/faugus-launcher/blob/1.18.2/assets/faugus-wargaming.png

Upstream author says they extracted them from .exe files. Is it okay
to include them?
They are used in GUI, you click on "New Game/App" select one of the
launchers (and see included icon). Then faugus-launcher downloads the
exe installer and runs it through one of the forks of Valve's Proton.

Also I am little bit confused what license should be these icons:
https://github.com/Faugus/faugus-launcher/blob/1.18.2/assets/ko-fi.png
https://github.com/Faugus/faugus-launcher/blob/1.18.2/assets/paypal.png