As per title. This is on a fresh installation of both Lutris (0.5.19-6) and umu-launcher (1.2.9-1) from pacman
Additionally: I set up umu-run as a custom wine executable and tried installing EA App. A curious warning message appeared in the log (but the installation continued as usual):
warning: Your version of wine umu-launcher is no longer supported upstream. You should upgrade to 8.x