They also both say far more random shit than their fan clubs are willing to admit. Amusingly, you can often find cases where they've voiced the same or very similar opinions (though at different times).
They agree on immigration, both illegal (border security) and skilled (H1B). They agree on trade policy and tariffs. They agree on public stakes in AI and semiconductor companies. They used to agree on foreign intervention, though Trump 47 less so.
Your first link - which is a little funny as you tried to slam me for using NPR and CNN as sources, then picked The Guardian - agrees with me; that Sanders and Trump disagree on immigration, even if they agree that Biden flubbed it.
> “The idea that Trump has … he says he wants to deport 20 million people who are in this country who are undocumented,” Sanders said. “Well, you do that, you destroy the country, because I got news for you – Trump’s billionaire friends are not going to pick the crops in California that feed us. They’re not going to work in meat packing houses. That’s what undocumented people are doing.”