Sadly the Name Mod will likely be more stable than a translation
Since Ren'Py uses hashes to identify lines a small typo generally throws off the translated line however that mod searches a string and replaces the character name. And as
ninjahotsprings mentioned a lot more thought goes into making translations then what some might think. Some even like credit for their work which would need an About section, not sure why you removed it as the link to the Ren'Py license is a requirement and not only does it tell what version of Ren'Py is used, what version of the game is used, and other info should be filled in as needed.
The Inventory Mod will likely still be relevant until Xmas
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Next version of the game sounds neat but with the staggered releases it will likely still be useful until next year unless you planned to change that to latest for patrons and version prior for public. You would definitely have more eyes on the game that way as it would have more time in Latest Updates.
As for potential bugs well a bit of coding knowledge is helpful seeing as the rpy files are just text files though you could also ask to see a save file to help troubleshoot
It's better then flailing wildly that mods are bad, m'kay.
You have version 0.6.1
When the dev updated to 0.8 they compressed things to make the game smaller. The size of that is 1.70 GB
Probably used one of the tools to convert png over to webp
YAC - Yet Another Cruncher