There was literally a media freak out over the apointment of Amy Barrett because people thought trump was stacking the court in his favour. I don't know how true that is, but its clear that a significant portion of americans believe it (belief that the court is political is damaging in itself even if it wasn't true).
Most judges actually are non-partisan-decide-based-on-law type. But they simply are not favoured.
Consider that sanders made it a litmus test for his supreme court nominees to overrule an unpopular court decision. Most judges would avoid at a politician demanding this, as it defeats the purpose of a judiciary.
