With the release of Aleph One 1.11, Marathon Classic on Steam now has native Linux support.
>https://store.steampowered.com/news/app/2398450/view/498331094794371615
>https://github.com/Aleph-One-Marathon/alephone/releases/tag/release-20250829
(Yes, Aleph One was natively Linux-compatible since approximately forever, but the Steam release was only Windows/Mac until now.)
(I'm still going to recompile Aleph One from source for this update instead of installing it from Steam, because I'm based.)