> the Swedish government is supporting him quite heavily
In what way? The Nordic countries basically made a joint press release calling upon Putin to release him back in 2020, but that's about it? That's not much more than lip service.
Also, one of the labs that verified that he was poisoned with Novichok is located in Sweden, I suppose (the other one in France).
Would you consider Smart Voting to be "interference" if Chinese backed activists promoted it in the US?