Icon / logo not showing for Provider Configuration (OAuth)

When I add a provider configuration (OAuth) with Google, Linkedin, etc, I have the option to input an icon class or an icon image. Both options do not work. When I type in fa-google for the icon class, the website shows the fa-right-to-bracket icon as a default. When I upload my own google icon as an SVG file, that icon fails to show up on display. Is there a way to solve this problem?