Upstream wine does not support shared resources, you'll need a build with Proton patches for that.
That being said, running Chromium is not a priority. If it works through Proton, great, but it probably doesn't anyway and I just don't really see a good enough use case for this right now that would warrant spending a lot of time on this.
Nothing extracted yet.
When I run Chromium through Wine the browser window is black and the terminal displays errors:
Software information
Old version of chromium downloaded from:
https://commondatastorage.googleapis.com/chromium-browser-snapshots/index.html?prefix=Win/230060/
System information
Apitrace file(s)
TODO
Log files
chrome.log