Another update (v.9.1) called "Noches de Arabia" for Tropico 6 has been released for Linux on Steam:

Fellow Tropicans,
A new update for Tropico 6 is now available for free!

This adds many quality-of-life improvements plus, a completely new language (Arabic) to the game. It also fixes many bugs in both the main game and DLC. Check below for further details:

Improvements
Arabic language support added.
[Multiplayer] Palace customization now visible in multiplayer.

Bug fixes
Fixed an issue where guerrilla attacks could lead to performance drops.
Fixed an issue where discarding an ultimatum would lead to a lost game event though an alliance with another superpower existed.
Fixed an issue where tourist planes could sometimes fly vertically or upside-down.
Fixed an issue where Tropicans walked on roads instead of using the sidewalk.
Fixed an issue where Tropicans could get stuck at bridges.
Fixed an issue where firefighters would stay at a building even after extinguishing the fire.
Fixed several crashes.
Fixed several graphical glitches.
Fixed translation and text issues.

Spitter DLC
Fixed an issue which prevented the new music tracks from being played.