Keep in mind that a president (and his administration) does a lot of stuff. 99.9% of what Trump does is wrong, but he may occasionally stumble on things that are, at least to some degree, "good". (Pardons given to deserving recipients, executive orders increasing pay in the military, etc.)
Of course a lot of that is just standard stuff that all presidents do (i.e. not something particularly praiseworthy even if it is overall "good".) Some of the stuff may be done not because trump thought it was a good idea but simply because he thought it "looked good"). Some of the stuff might be good even though it could have been done better.
Take for example the government investing in Covid vaccine research in his first term. Overall, that would be characterized as "good". Of course it wasn't particularly unique (governments all over the world were investing in vaccines), and probably any president would have done the same thing if they were in the same situation. And of course it certainly doesn't excuse all the other ways the Trump administration screwed up the covid-19 response.
