Perhaps even 3 are cause for concern.
see:
1) left engine, PW4098-112 engine suffered an uncontained failure
2) 45 minutes before landing, suffered a fan blade failure, which caused much of the inlet and cowl to separate from the engine.
3) left hand engine (PW4074) failed and its access doors ripped of
also see "The ministry reported one of the fan blades of the left hand engine was damaged at the root". from the source
https://avherald.com/h?article=4e011c3a
4) On February 20, 2021, a Boeing 777-200 with PW4077-112 engines performing United Airlines Flight 328 from Denver to Honolulu suffered a fan blade failure shortly after takeoff
5) engine failure above the village of Meerssen, shortly after taking off from Maastricht Aachen Airport on the way to John F. Kennedy International Airport. Falling turbine blades lightly injured two persons on the ground.