Biden 12-15 Term annual growth :
Average : 2.35%
Trump 16-19 Term:
(projected without COVID) 2.3
Average : 2.3%
According to numbers, the economy was booming as much under Trump than it did under Obama.
2015 : 5
-2.9% for Obama/Biden
2019 (projected without COVID) : 3.5
-1.2% for Trump
I could easily say Obama did a better job on unemployment. But honestly the lower it is the harder it is to reduce it.
So here, I'd say, At best for Trump it is also a tie.
So there is no evidences, as you said, that Trump or Biden would do a better or worse job on these subjects.
So remain all the rest : international policies, inner policies, ethics, etc...
Which well, is depending of ideologies mostly. So it is one opinion versus the other, on these subjects there is far enough threads to keep them away from this reply.
And remain the big thing : COVID handling.
Here, according to numbers, not only USA did worst than many countries, but it is one of the country with still no coordinated plan to fight the virus : contradicting information on the social distancing, masks, poor access to ventilators, etc...
As the USA is supposed to have the best doctors and medecines, as the USA spend the double per capita than any other wealthy country in healthcare, the handling of COVID was really bad don't you think? US citizens should have expected better outcomes.
So as you asked if " biden being able to do a better job" ? And it was at worst for him a tie on other subjects as I said above, I believe, on the COVID subject he can't do a worst job. Him being able to not get infected is just an exemple.