Did President Johnson vetoed Reconstruction Acts hindered the work of the Freedman's Bureau and undermined congressional Reconstruction efforts in many other ways?

Answer 1

Well ... sorta. It's actually more complicated than that.

One thing to understand is that Johnson was unreservedly for bringing the confederate states back into the union (in fact, he took the position that they'd never actually left it, and should be re-recognized as states as soon as loyal citizens there could form a legitimate government). He regarded the entire question of sufferage for former slaves as at best a delay and a distraction in this process, and he was at least somewhat opposed to it on the grounds that freedmen, many of whom still had strong economic ties to their former masters, might be induced to vote at the direction of those former masters.

So all the things you say in the question are true, but they weren't necessarily done with malice (in fairness to Johnson, Reconstruction really was a pretty ugly time for many southerners and a lot of the Reconstruction Acts themselves bordered on being malicious). The typical view of early 20th century historians was that Johnson (including Woodrow Wilson) was dealt a bad hand and was trying in good faith to follow Lincoln's own lead in terms of Reconstruction policies as best he could. Modern historians mostly disagree and cast him in a considerably less favorable light.