Hey, thanks for the update! Glad to hear the storage and German bugs are gone. I see what you mean about the built-in volume enforcement. That was a leftover code snippet in my code which caused a back off enforcement which tried to apply the volume every time the websites sends any mutation (an element changed) events. I'll write a hotpatch right now to fix this issue, which will apply the volume (if set) once on website loading, then prioritizes the user's input. v2.0.2 should be published pretty soon (next couple of days).

Original Reply: Thanks for reporting this! The older version had a couple of bad bugs that broke storage saving and forced the German layout on people because it completely lacked a proper language system. Both of those issues have been fully fixed in the new v2.0 overhaul I just published. Feel free to give it another try, and I'd love to hear your feedback!