Another problem with "likely to vote" is that some pollsters will use the criterion of having voted in the previous election as a way to determine likelihood. A couple problems with this....
First, 1.4 million ex felons in Florida did not vote previously due to being banned from voting. Even with the unconstitutional "legal fees" roadblock, that still leaves something like 700,000 ex felons who can now vote. That's a big chunk to be filtered out by a likely voter algorithm, simply on the basis that they didn't vote before.
Second, 18 year olds, voting for the first time (and by all reports, unusually energized this year) would also get filtered out by that algorithm.
Third, look at how bad governance, endless lying, and overt racism mobilized a congressional Blue Wave in 2018. How many of those votes came from previously apathetic "unlikely" voters?