I don't particularly trust any poll that is taken by other than impartial polling entities. I found a link to an interactive site that shows polling information on a daily basis. It shows that on the 205th day of each their presidencies, Biden has a 50.2% approval rating while Trump had a 37.6% approval rating. It also shows comparisons for Biden compared to earlier presidents. In addition, another chart shows that FOX's poll was of a relatively small number of people polled versus a poll by Morning Consult polled 15,000 people.
Biden doesn't need polls to cause him trouble. He's already done that to himself many times over. But to answer your question, I'm sure this will throw more fuel on an already large blaze. People are waking up. Even some of his fellow Democrats are beginning to give him the old facepalm while roasting marshmallows in the fire.
SpunkySenior 