i used your shared encode settings and here are the files:
https://drive.google.com/file/d/1Z20...ew?usp=sharing
https://drive.google.com/file/d/1Tfy...ew?usp=sharing
on a first look 444 is doing fantastic better then i would have expected from the source.
the encode was done from the original ultrafast compressed lossless x264 source not the shared one the FFMPEG or x265 couldn't deal with it.
the 4:2:0 encode had --pool the 4:4:4 not i just copied the settings form you didn't notice before i even started encoding.
4:2:0: encoded 2322 frames in 620.47s (3.74 fps), 5152.00 kb/s, Avg QP:35.55
4:4:4: encoded 2322 frames in 837.02s (2.77 fps), 5152.05 kb/s, Avg QP:35.47
bilinear chroma 4:2:0:
https://abload.de/img/420dota2k1ktm.png
4:4:4:
https://abload.de/img/444dota2lkkf7.png
source:
https://abload.de/img/lldota282j4c.png