NBC News (A- rated pollster) found Biden +14, surveyed fully after the debate. The last time this poll was in the field was September 20, when Biden was +8. They had Biden winning the debate 49% to 24%.
I think this is the first highly-rated national-level poll conducted post-debate. The next thing to watch for (in addition to more high quality post-debate polls): Nate Cohn of NYT says that there was moderate evidence of a shift in favour of Biden in their polls conducted after Trump's Covid diagnosis, which made up part of their state-level Pennsylvania and Florida polls released yesterday, as well as an upcoming Arizona poll. Another analyst from the Economist said something similar, although he could have just been rephrasing Cohn.
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