Well, in regards to the confiscation that was more of getting them to work (just like their Confederate counterparts) rather than properly freeing them outright and arming them some did do it but wouldn't become official policy until the Emancipation Proclamation came around.David Hunter actually had two proclamations in which he freed slaves. Lincoln allowed the first one to stand because it was in compliance with the Confiscation Acts. He overturned the second one because Hunter, like Frémont before him, had gone beyond what the legislation had allowed. Frémont didn't change his order on his own. Lincoln wanted him to do so and Frémont refused unless Lincoln ordered him to change it, which Lincoln did.
The Union did have a formal emancipation policy from August 8, 1861 onward, and McClellan abided by it. Slaves who came into their lines were freed, especially after Congress ordered, with Lincoln's approval, military officers to stop returning fugitives to their owners, even if the owners were said to be loyal citizens.
Lincoln's preference was for gradual, compensated emancipation accompanied by voluntary colonization. He even was able to get Congress to appropriate funds for colonization, and a couple of experiments were carried out with disastrous results. The colonization program was a huge failure, primarily because most African Americans didn't want to go.
Johnson carried out his own program, not Lincoln's. It's easy to get the two confused because Lincoln wanted to be lenient, but Johnson didn't want any protections for African Americans in the South, whereas Lincoln would not have abandoned them like that.
Far more nuanced than most understand.
Lincoln and Johnson wanted of course to take a conciliatory approach and you did point out a difference between the two, however the former was in favor of it yes but it applied to only two groups: wealthy educated free blacks and black Union soldiers if you were neither then it didn't apply you and he simply asked for at least 10 percent of each Southern state populace to pledge loyalty this was in contrast to the Radical Republican approach of disenfranchising anyone suspected of loyalty to the Confederacy and having a rather harsh approach towards the South.