It is a closed system. I tried to look at a company's news the other day, they post it on twitter/X/musk-vanity-project.com. If you're not logged in, you cannot (as far as I can work out) get tweets in chronological order any more. They DO have tweets made in the last few months. But I'm seeing 2019/2020 for pages and pages.
If you're not a user, that site is entirely useless now. Better to just wait for businesses to realise this and GTFO to a proper website. Not this Mickey Mouse toy of Musk's.