It still boils down to the same thing as the previous thread: How do you deliver them to your target? For Germany, there are only two viable methods. One, use a Mistel. Two bury the bomb and detonate it under your enemy as they move over it.
Option one is somewhat risky as the chances of being shot down in the West are high. Using a Mistel against the Soviets is far less risky as they have no really viable nightfighter force.
Option two is very risky. If the bomb fails to detonate your enemy now has a nuclear weapon. If it is captured prior to detonation same thing. If the enemy does not mass where the weapon is placed you waste the weapon on alot of open ground for little return. On the whole, this option is very uncertain in result and very risky in operation.

Of course, if these are available starting on 1 April 1945 (eg., about a month before the war ends) basically the German best move is to get them West out of reach of the Soviets by road or rail. Forget using them. Just make sure they don't fall into Soviet hands.
Germany at that point is so messed up that there would have been no way to transport the bombs to a useful location and use them. In the West the Allies at that point are motoring around like they are on vacation. A crew trying to emplace and ground detonate a bomb is just as likely to be overrun as complete the task. In the East the Soviets are so numerous that blowing up a few of their units would make literally no difference. There is no way to air deliver them by that point in the war short of a one way suicide mission; and even that is nearly impossible due to the fuel situation.