Unclear Linux distribution support

[slrslr]

At https://www.nomic.ai/gpt4all I can see a download drop-down button which suggest a Linux Ubuntu support.
The file has .run extension https://gpt4all.io/installers/gpt4all-installer-linux.run

At https://docs.gpt4all.io/ and https://docs.gpt4all.io/gpt4all_desktop/quickstart.html is mentioned as a general Linux download, but as a regular user, I do not know the .run extension, I know AppImage, .deb

So if this .run file is compatible with all/most distributions, you should not confuse people by by showing Ubuntu label/icon?

I have not seen a regular contact on the website, so I am posting here.