I had the same problem with Fallen Order the first day; the workaround in that particular case was to launch the game's executable directly; which let me play that one, single time. A few days later and both the original workaround (and others) & no-workarounds caused the game to launch in the background, with no way to force it to the foreground.

In Fallen Order's case specifically; there appeared to be a launcher-specific wrapper executable, and the game itself. When the workaround stopped working, the launcher-specific wrapper is what was getting ran in the background; but the game itself never actually appeared. Additionally, reinstalling the game several times did not resolve any issue; nor other troubleshooting steps from EA.

Origin was also a pretty crap piece of software (compared to Steam, anyway); but this is a new low from EA, imo. Its a shame too, because I liked what I got to see in Fallen Order, especially recently getting into souls games.