Consider disabling Nvidia shader cache
While working on #20261 (closed) i noticed back in November the Tor folks added the following line to their start-browser script:
export __GL_SHADER_DISK_CACHE=0
But this doesn't seem to be reflected in our tor-browser.sh script. Perhaps it should? For more info, see https://gitlab.torproject.org/tpo/applications/tor-browser-build/-/commit/f72fe52817c9a5eb990a7e070d9b94a369030c8f