Can someone explain me what is NG+ and what is save warping?

Hi, im new here and I dont know what is NMS and unrestricted, I know what is OOB and I can figure out what skipless is

In this video he gets out of freddy very quick, how can I do that?

from second: 0:31-0:44 Also thanks in advance :)

I can be 30 minutes trying and I can only do It 1 time, there are some tips to do It easy??

this is a video of the jump i cant do

Hi, im new here and I want to do my first speedrun but I play on PS5, to submit a speedrun i need to have a timer like LiveSplit (or something else) or is not necesary to have a timer?