Reply to Simple question about recreating sounds

Hello everyone,
I'm a 19 year old producer from germany and I'm new to this community . I just started making music.
Right now I'm making a track where I would like to incorporate some popular sounds from Knife party etc. together with my own style. I found this tutorial on youtube:



Is it legal to reproduce popular sounds like this (not sample) and also sounds from many other tutorials into your own tracks? I believe its ok and everyone does it but I just want to make sure because I don't want to upload tracks where I don't really own the rights for. Just for you to understand : I'm not entirely remaking one of their tracks and I am using different notes together with my own style.

Thanks for any replies.
Greetings