legendary VS HeroicBashLauncher

You should try using Legendary. It's an open-source command-line client for Epic. It does pretty much what Epic does but it's quicker to install/launch games and you won't have to worry about telemetry or "spyware." Although, you will have to buy games through the Epic online store.

I'm using an open-source alternative to the epic games launcher (legendary) that uses wine, and when i try to run a game through the terminal, a log of wine shows up.

It's an epic games launcher alternative, and a UI frontend for Legendary. (Don't worry, guys. It can launch non-epic games as well 😅) It's simply meant to be like heroic, but this time putting macOS first.

If you are familiar with using the command-line then you can use Legendary and import the game to your EGS, but you will need to do this one by one for each game.

Oh, you're talking about the launcher? Just use Legendary. CLI-based, so performance isn't an issue. If you know how to use a command line, you'll know how to use legendary with no problem. You can even launch some games without ever connecting to Epic after downloading them. Highly recommend, it's what I use.

Hay un launcher alternativo, Legendary. (https://github.com/derrod/legendary). Se usa con comandos (al menos la última vez que lo usé no tenía interfaz). Es.. interesante.

Grab your favorite EGS client and install the game. For this purpose I am using legendary. Legendary is important later, so it is a good idea to have it installed regardless. At this stage, if you try running the game, the game will crash within moments, and spawn 2 windows: a Wine debug window, and a bugsplat window.

If you want to avoid using the Epic Games Launcher, but still want to play the games you have there, you can use Legendary (which requires you to use a command line) or Heroic Games Launcher(which is based on Legengary and has a Graphical User Interface, so is much more user friendly). Both are open source.

Can you utilize addtosteam.sh with this similar to how heroic did?

I've previously used Heroic Bash Launcher for that. It generates a script that opens the game in exactly the same way Heroic does, and you can then add the script as a non steam game.

The EUREKA moment came from a thread for CIV IV on a random Heroic Launcher Github thread. https://github.com/redromnon/HeroicBashLauncher/issues/38

Works for me with Lutris shortcuts and some native Linux games I have installed. Herioc shortcuts needs an extra step using Heroic Bash Launcher

You're probably better launching through heroic and not directly using proton. This project looks like it might add all your heroic games to steam automatically: https://github.com/redromnon/HeroicBashLauncher

Heroic Bash Launcher

Use Heroic Launcher (find in desktop mode via discover (flatpack)). Install Windows versions to take advantage of Steam/Proton. Sync saves using Heroic Launcher too (be careful the feature is currently in Beta, but working fine for me in D:OS). Install the shortcut in your steam library using Heroic Bash Launcher, job done.

For heroic installed games, i used https://github.com/redromnon/HeroicBashLauncher to add steam shortcuts for individual games.

But for Heroic, afaik you need this, though I am still working on the guide and can't 100% confirm.