No they are not, seriously don’t believe them.
Especially twitter polls coz you can buy votes as well.
I always give the example of last year Romil and Sree looked confirmed for top 2. In the end we all know what happened.
No one knows voting trends these khabris just make wild guesses based on twitter popularity which in itself is questionable, due to bots.
Anyone can usually make a guess to a certain point in the season on evictions, but they usually always end up wrong in the finale.
The most legit handle @sonalifan (compared to others) has confirmed that voting trends/numbers are kept discreet no one really knows how many votes someone got.