You would have to install via Wine, and that’s what some people do, iirc. All of your games would be installed in that prefix, rather than their own. I think one of the benefits is more reliable cloud saves, though I haven’t personally done that or had problems with Heroic.
You can use Heroic game launcher for Epic games and few other launchers. There is no way to use official launcher as far as I know.
You would have to install via Wine, and that’s what some people do, iirc. All of your games would be installed in that prefix, rather than their own. I think one of the benefits is more reliable cloud saves, though I haven’t personally done that or had problems with Heroic.