OP,
I get wanting to solve it, but I worry, I think perhaps pay someone now to change the mount for your future success.
everyone,
I think OP just clarified, it’s access to the POWER outlet that is blocked by the TV.
Is it a recessed outlet? How does a power adapter fit behind the TV?
Thus, the TV has to get ’out of the way’, evidently one method is simply to raise it above the height of the power outlet, plug in the Apple TV’s power adapter, and then lower the TV back where it was. Thus the thing lifting it, the height adjustable desk, has to also get out of the way, allow the power outlet to be plugged in.
So, someone has to steady each end, and a hand must be available to plug in the power adapter, (and hdmi cable), and that someone else steadying the other end of the very expensive 85" master quality sony 8k tv better be strong and part acrobat.
.............................
1st, in order to move it at all, you will need to remove the safety mechanism that was the last thing fastened, All it’s weight will have to be dealt with once lifted.
2nd, the 110 lbs of weight is not balanced, so one split-second surprise of weight shift and ......
3. push the top back, the bottom kicks out, , now the thing is pushing you off the chair you are standing on, ...
4. let's take a short break, catch our breath, can you once it is off the rails?
I recently tried to help a friend put his new 75 where his existing 65 was.
My friend was tall enough, arms long enough, but he was not strong enough to hold his end long enough for me to figure out what I was looking at.
After that, I realized, the type of mount I linked above would make a big difference, just to pull it out from the wall, see what’s where, and quickly get the weight onto it. Whew, now a safety latch of some kind, push it back against the wall.