Steam/Proton .dll override (add to launch options):
WINEDLLOVERRIDES="[name]=n,b" %command%
# e.g. for BepInEx "winhttp.dll"
WINEDLLOVERRIDES="winhttp=n,b" %command%
If the above doesn’t work, add as a winecfg override
$ winecfg
# Navigate to Libraries
# "New override for library"
# Name of lib without .dll suffix
# Typically add as "(native, builtin)"
# "OK"