How to avoid the DirectX/Vulkan/32-bit selector when starting Hades?

The Launch Editor of SteamEdit is the only way, as far as I know, and it's limited to Windows/Wine. I can't test, and it's been almost a year since it's last update, so it may be broken/unmaintained now.

What it does is modify a Binary VDF (Valve Data Format) file to replace launch options (create/remove), change the visible game name, it's name used for sorting, and etc. Based on my own outdated project, the file seems to be appcache/appinfo.vdf.

It would be possible to modify this manually, but it would be hard because the file is updated when there's an update to an app/game and destroys the customization. It's also difficult because of lack of documentation of the BVDF file format, and outdated/broken-by-design parsers, along with next to no serialization code.