Singer made a name for himself with The Usual Suspects, other than that he's just an incredibly average, forgettable Hollywood director who got by on reputation alone. He makes expensive movies, so I guess that's at least worth checking out.
Movies
The more legendary the band, the blander the biopic. Bryan Singer fails to give proper homage to a band as big and influential as Queen. Safe some details, this looks exactly like a million other band biopics I've seen. Malek does well I guess, but unless you're fan of the band I think you're better off watching a documentary.
Just another Marvel movie. As a casual watcher I've lost all track of timelines, characters and alternate universes. The plot is so simple that it doesn't even matter though. Apocalypse is another shitty CG fest where good trumps bad but takes a very long time to do so. Bryan Singer doesn't add anything either.