What is about: E-A-T (Expertise, Authority and Trust) of the Domain, u should have very strong link profile (backlinks), and on other side the user signals are important too in this update.
You should maybe check your domain backlinks, maybe there are few spamy links which are not good for you, this happens especially when people orders from fiverr.com their seo offpage packages as example…
for more informations:
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Have u guys discovred the Questions And answers in Googles Search Console, that means your QA posts on the forums will get better rankings, and will be recognized as question with answer, that means that the software of this forum, works just fine and its actually pretty good optimised…
