I was thinking about doing more random seed runs, just wanted to know if you forgot to do /seed after a run in 1.16 if it could still get accepted

I was thinking about speedrunning glitches 1.16.1, how do I duplicate the items.

How does seed finding work? I was curious as to how these 2 seeds are practically the same (-4530634556500121041 and -978983300365063633). Could someone please help me understand?

Does anyone have the link to download the in-game timer?

I just watched the elder guardian wr and tried the seed, but when I spawn, instead of spawning above the monument I spawn on an island 20 blocks away from the monument. I was playing in 1.16.1 and I am sure the seed was right, does anyone know what the problem is?

Why is the category name spelt etner edn and set as a misc category? I personally would consider other categories such as obtain items to be more of a misc then Enter the End.

I am thinking of speedrunning Minecraft beat all bosses, anyone know if you are allowed to use the "Skip The Ender Dragon Glitch" and have it count as beating the ender dragon?