I don't take any such polls seriously at this very early stage.
We don't even know who is going to be nominated.
Trump is under indictment on 91 felony charges.
While most of those won't be resolved before the election, some will, and his odds of acquittal on all charges is very very remote.
How will non maga facist republicans and independents react to a candidate headed to prison that can't even vote.
Also, Trump clearly is very unhealthy and has brain processing problems. His brain farts get more scharty on a daily basis.
Biden on the other hand, unfairly labelled as having dementia without any medical evidence, when such a case could easily be made even more so for Trump, is also at an early stage of the nomination process.
He might be bluffing a run to avoid being a premature lame duck. He might have a health crisis. There is still PLENTY of time for a democratic STAR with landslide potential to get the nomination instead.
Caring about polls at this stage is purely inside the beltway type stuff.