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@bluecanary3@mastodon.online
I'm not sure, it depends on whether the German speakers were choosing the correct posting langauge in their preferences.
If they are on a server where English is the default language, they may have not changed it to German.
Don't be afraid to mute accounts if they are showing you irrelevant content. If you're nervous doing so, you can use a timed mute instead of a permanent one.