Did X suppress support of the other side? The Hunter Biden laptop story is a prime example of the difference between X and Twitter. The suppression of Covid debate is another example.
On old Twitter you could call someone a Nazi and accuse them (falsely) of genocide. But if you “dead name” a celebrity, you’d get banned.
I'm not sure about the veracity of your claims of bias pre-Musk (I have heard of the NY Post story issue, as far as I'm aware they suppressed it on advice from law enforcement that it was foreign propaganda, which was later withdrawn and the block removed).
However in answer to this question:
> Did X suppress support of the other side?
If you have 2 options and you promote one artificially then that is the same as suppressing the other option, in either case you're making sure more people see one option than the other.
I mean, new!Twitter went through a phase of banning people for merely uttering the dread word 'mastodon'. They also, briefly, hilariously, memory-holed the word 'Twitter' (any occurrence of the string 'twitter' on the mobile app would be replaced with 'X', leading to a rare 2020s outbreak the Medireview Problem: https://en.wiktionary.org/wiki/medireview). And various other deranged petty nonsense.
On old Twitter you could call someone a Nazi and accuse them (falsely) of genocide. But if you “dead name” a celebrity, you’d get banned.