when compiling proton for the proton media player searching for gsteamer v 0.19 current arch version of gstreamer is 1.22.5-1 in arcolinux repo is not sufficient. and compiling gst-libav isn't working with the stable options either so fixing possible gstreamer issues cant be fixed in that means either due to issues downloading source code in the project which needs to get fixed so all parts of the source code and project can download. please check pkgbuilds and links to source code
when compiling proton for the proton media player searching for gsteamer v 0.19 current arch version of gstreamer is 1.22.5-1 in arcolinux repo is not sufficient. and compiling gst-libav isn't working with the stable options either so fixing possible gstreamer issues cant be fixed in that means either due to issues downloading source code in the project which needs to get fixed so all parts of the source code and project can download. please check pkgbuilds and links to source code