Q: like, try to make a curved mirror in eevee. its basically impossible to make it fully reflective as far as i know
A: right. but, .... i am working with the absolute fastest computer on the market for my operating system, and there is still significant wait time just to even see what i'm working on. working blind is something i've just decided i'm not willing to do anymore. Additionally, .... i drew up a fairly simple scene (1 image! not even a video) with some lights and reflections, .... i set the sample# to 1000. waited quite awhile, and after all 1000 samples ..... still an absurdly high quantity of noise. not even close to being noise free. and still significant wait time. for ONE frame. a video contains at least 30 frames per second (and i would strongly prefer 60). yes eevee is frustrating and wacko when it comes to reflections and transparencies, and i still need serious help with it, but when all the factors are considered for Cycles, it's just no after no after no after no. If there is a computer in existence that can do Cycles renders instantaneously, i will spend my entire life savings on it. but i am under the impression that it is not there. The good news is, when put into perspective, Eevee is absolute lightyears ahead of where i've been before