In looking at polls at 270towin, I noticed something that struck me. For example, Florida. Biden is at 48%. Trump at 41%. But Other is at 11%. This is typical. At any state, anywhere from 8% to 12% are "other". I have seen a number of polls that tell us some people out there do not like either Biden or Trump and are not going to vote. If say 5% of Florida's Other are that, of the remaining 6%, 4% are going to vote Green or Libertarian. and the rest, 2% are going to make up their mind late in the election season. Even if they went mostly for trump, it wouldn't be enough to matter. It is hard to say what this all means, though again, I have seen reports a sizable number of people don't like either candidate. It might be possible in states where one or the other candidate is so far ahead a vote for either makes no difference that some people will vote Third Party to register their discontent with both parties. Whether any of this makes a difference in the race at this point, I cannot really say for sure. But my back of the envelope calculation would seem to say it won't matter much as in many swing states, Biden leads by 8% to 10%. For example, Michigan, Wisconsin, Pennsylvania, states that gave Trump the electoral college in 2016.
https://www.270towin.com/2020-polls-biden-trump/
This may give some Big False Hopes to the Trump camp.