I created a simple AppleScript icon on the desktop to launch the game, modifying this can work for people. It opens a shell and launches the game UI. Open AppleScript Editor (in the Applications folder), and paste the following in (edit your home folder):
tell application "Terminal"
activate
do script "cd '/Users/dan/Library/Application Support/itch/apps/FPV Freerider Recharged' && open ./FPVFreerider_Recharged.app --args -screen-fullscreen 1 -screen-width 1920 -screen-height 1080"
end tell