Before X flagged me as a bot for no reason, I had a mostly unused account and can confirm it was showing me a ton of right-wing content. Also lots of stuff related to Elon Musk in particular.
On the flip side, X has less moderation, and it's pretty even-handed. They're allowing a lot of pretty mild right-wing content that Twitter was banning people for.
They didn't release the ranking algorithm as open source, but they released enough of a pretense that people got some hints, and we know that whether a post is by Elon Musk is one of the most important ranking factors.