Putin has not jailed opposition parties, if you’re referring to Navalny he never had more than 3% support in Russia. The actual opposition is KPRF that has around 30% support. Meanwhile, journalists are jailed in the west all the time as well. Assange being a perfect example. Finally, the numbers for Putin’s support are openly admitted in western media. Why would you lie about something like this?

They now tend to see the weakness of the Russian anti-war movement as a mark of complicity among the Russian public, and they are dismayed by Putin’s approval rating: independent pollsters have measured it at over 80% support more than two years into the invasion. Even President Volodymyr Zelensky and his team have all but given up on their hopes of a popular backlash in Russia against the war.