Good thread...
My take on RTP is that it's just an imaginary number. It's what casinos have to provide to operate to show that slots have "theoretically a good chance of getting you almost all your money back".
No one knows the amount of spins used to determine this number and it's agreed that in any case that number is absurd (millions, billions, etc...).
For any normal player or even a streamer, these numbers are not something they will do in their lifetime so I don't really understand the need to dwell on such an insignificant number.
I mean for all we know there is a 1:1,000,000 chance of hitting a max win on a slot which is supposed to "give you back your money". Sure, play 1,000,000 spins and you'll probably hit that. Didn't hit that maxwin.. oops, sorry... you'll get a 45% RTP instead.
No one knows how slots work. Be sure that they are rigged so that short term you'll lose most of your money and you'll find the actual RTP is much smaller than 95%, 90%, 80% or even 70% most of the time.