You can use Eternity for the time being. Jerboa is broken for 0.19.0. The software has not even passed the 1.0.0 mark, so this behavior is understandable.
This is not possible on the official Lemmy UI and as far as I know no third-party apps or clients support this either. What some third-party apps do support is hiding content based on keywords. If the content that annoys you has some words in common, maybe you could use those keywords in a third-party app to filter it that way?
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