You fear it may be? Is the LeBron episode not enough? The leaked system prompt? The "everything is white genocide" episode? Every time he promises to "fix" it when it says something he doesn't like?
Elon has proven again and again that he is making a propaganda bot, it is completely unreasonable to extend the monumental amount of charity required to look past this.
What is absolute truth? You can get into long philosophical debates. As a practical matter Wikipedia goes with mainstream sources.
The "stated goal of Grok is to seek out the truth" sounds good in theory but I fear it may be to reflect Musk's views in practice.
If the options are either the NYT or the visions of Musk, I'll take the NYT personally.