Sadly, this is not fixed yet.
The Linux installer that is downloadable from my GOG account:
war_for_the_overworld_2_0_7f1_30014.sh (3.2G, MD5 hash a352307c8fbf70c33bdfdd97a82c6530)
The meta-data provided by GOG claims it to be version 2.0.7f1, but it is really still 2.0.6f1. Version shown in main menu screen is 2.0.6f1, Japanese translation is not available, the nice tweak moving unit count numbers to free up the artwork is not there.
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EDIT
This website tracking activity on GOG side shows no installer update since the original faulty 2.0.7f1 release, in June 2019:
https://www.gogdb.org/product/1964276929#changelog