Im not trying to argue with you, but I know blender 2.9 and 2.8 is just be the same with just a few minor bug fixes and stuff. I know that plus all I’m saying is that I’ve never used blender 2.9 and my information may not be correct, as I’m just going off your information. I am already sticking with blender 2.8 and not here to learn a few things again, I’m already comfortable to be with blender 2.8.
alright man i still don’t think you understand that your not going to relearn anything as it’s just an improved version, so you can stay with 2.8 even after better versions come out. Have a good day.
You too. Have a good day! 
Bye!!