AFAIK you can skip the “download” by also copying the corresponding .acf file in the parent directory.
.acf
Steam starts Proton inside a container and runtime. Maybe those provide some special $stuff for those games.
https://github.com/GloriousEggroll/wine-ge-custom/releases/tag/GE-Proton8-1
Overwatch losing focus after death seems to be fixed
AFAIK you can skip the “download” by also copying the corresponding
.acf
file in the parent directory.