Since the bug/issue reports just keep getting more in number.
I decided to do two tests.
First to see if taking the egg matters to the process of getting a second gate.
Second to see if there is a difference between creative mode and survival mode.
I was stunned over how much the End lagged but I continued the dragon process. I had gold apples as food- jeb/enchanted. If this matter but I do not think so.
After killing the dragon no gateway spawned.
I exited the end and got back with more crystal-things, now the normal lag as I remembered from the 21st of December.
I did again the dragon steps and now I got the end gateway.
moving on to the tests. I found you can break blocks and take the egg both in survival and creative, it does not matter.
However extreme lag and frame drops for no reason DO matter.
And breaks something in the process of generating end gateways.
9 tests one fail.