To be clear:

https://en.wikipedia.org/wiki/Wikipedia_and_fact-checking.
Vs.
https://grokipedia.com/page/Wikipedia_and_fact-checking.

Grok explains itself:

Co-founder Larry Sanger has argued since 2020 that the platform exhibits a pronounced left-wing slant, attributing it to the exclusion of conservative viewpoints via policies that deem non-mainstream outlets unreliable, even when they report verifiable facts overlooked by establishment media.[89] This is evident in the Reliable Sources guideline, which prioritizes legacy media—often critiqued for institutional left-leaning tendencies—over primary data or alternative analyses, effectively blacklisting sites like those affiliated with the Daily Wire or Breitbart unless corroborated elsewhere