Hi there -- at the time we released "Hope, Abandoned" to play on Itch a couple years ago, RPG Maker MV didn't have an option that allowed us to build for Linux. While it has since gained that ability in the past year, I've been debating if I wanted to go back and try a Linux build, and I'm just unsure at this juncture as we don't have a Linux setup to test it out in.
I'm giving it some consideration, though just don't have the available time right now to do so. If that changes, I'll reply to your comment once again to give you the heads up. In the meantime though, I apologize that the Windows and Mac builds are the only way to reliably play.