No, what would be misinformation would depend on whether or not it is misinformation. Not the messenger.1. - In regards to a topic like ... say COVID, what would be misinformation would depend on the Government, the Agency, the Doctor, and/or the Company that employs the Doctor.
Misinformation and propaganda is by definition misinformation and propaganda.2. You are assuming it is actual misinformation and propaganda.
Most of that is what Twitter has been trying to do. They've certainly gotten it wrong some of the time.If there is going to be any filtering, make it clear, concise, easily understood, and at the users request. I don't need hit/miss algorithms or potentially sketchy/biased reviewers trying to predetermine what is "misinformation".
As far as "at the users request", that would be self defeating. Propaganda works. The very people who are likely to be influenced by misinformation and propaganda would be likely to opt out of warnings and moderation.