Like all social media, your feed depends partly on who you follow and partly on behavioural cues their algorithms can determine about you (such as who you interact with, sites you visit).
It may be skewed one way or another more than other social networks, but even so, you should be careful saying a social media is a racist bigoted right wing echo chamber because it can sound not like a recital of popular media but more personal experience
One of the many reasons I stopped using the platform is because after Elon took over, my carefully tuned algorithmic feed stopped showing me content I was interested in and instead promoted bigots and nazis into my feed. Nearly all of the accounts I followed promptly went elsewhere instead of having to endure the platform.
I only check literally one account occasionally, and via xcancel. The last post I looked at on the platform was vaguely supportive of the LGBT community- all top replies were all blatantly homophobic and had slurs in them. It was via xcancel so I wasn’t logged in. That’s not a personalized algorithm showing me bigotry that’s just what the platform is now.
Given who controls the algorithm, I don't think there's anything inaccurate about the statement.