I my experience as someone who resides in India, I have seen Twitter repeatedly silencing voices of the opposition and amplifying the voices of those connected and aligned with the majoritarian, right-wing elements - and I don't think it is because of any algorithm. There are clearly people involved deciding case-by-case to shutout voices of the opposition.

We have seen this with Facebook as well with Facebook charging 3 times higher for ads from the opposition parties in a bid to influence the elections: https://www.aljazeera.com/economy/2022/3/16/facebook-charged...