I’ve found two possible solutions:
- If you use some kind of Lemmy reader instead of using a browser, it may have a filtering function, like “hide post including this word” like using regex.
- “After complaining yesterday about seeing too much Linux content in the Fediverse” — this Lemmy user seemed to have experienced a similar problem, and finally found a fundamental (albeit rather unexpected) solution. Read more: https://lemmy.world/post/8107430
For those who are still on Win 7: Firefox (and so Tor Browser) will stop supporting Win 7 soon. Seriously, you better plan to migrate to Linux. Not-so-good privacy issues aside, everyone knows Windows is not very secure/safe/convenient anyway.