They are all extreme right-wing. Fox used to be centre-right with reasonable reporting prior to Ailes being fired and Trump gaining the presidency. During the course of Trump's administration, however, they turned into a propaganda network for him advancing his blatant lies that could easily be disproven, starting on Day 1, falsely claiming his inauguration had the largest attendence in history. It went down hill from there, getting worse and worse, month after month.
Then came election night when Fox's political news desk (which was preeminent in their field for years in accurately assessing election winners) called Arizona for Biden. Trump was furious as it threw a major wrench into his narrative about winning the election by a landslide - when in actuality he'd already lost other swing states by that point - and accordingly sought revenge. He told his supporters Fox had basically betrayed him and they shouldn't trust them anymore. Instead, they should tune into Newsmax and OAN (who were more extreme in their sycophancy) instead, which they did by the hundreds of thousands. Fox panicked at their loss of viewers and doubled down, telling viewers what they wanted to hear rather than the truth, in order to win them back. They've been doing that ever since, which is why they're currently facing multiple billion dollar lawsuits against them as too are a number of their hosts.