The F-22 doesn't use DSI intakes.
J-20 has DSI intakes.
F-22 has standard intakes.
Comparison:
LPI Radar- F-22=Yes, J-20=Yes, T-50=Yes
Opaque Radome- F-22=Yes, J-20=Yes, T-50=Yes
Chined Nose- F-22=Yes, J-20=Yes, T-50=Yes
Frameless Cockpit Canopy- F-22=Yes, J-20=Yes, T-50=No
Opaque Cockpit Canopy- F-22=Yes, J-20=Yes, T-50=Yes
Serpentine Intakes- F-22=Yes, J-20=Yes, T-50=No
Canted Vertical Stabilizers- F-22=Yes, J-20=Yes, T-50=Yes
Internal Weapons Bay- F-22=Yes, J-20=Yes, T-50=Yes
Blended Fuselage/Wings- F-22=Yes, J-20=Yes, T-50=No
Smooth Skin Lacking Significant Protrusions- F-22=Yes, J-20=Yes, T-50=No
Serrations on Weapons Bay/Landing Gear Doors- F-22=Yes, J-20=Yes, T-50=No
By the way, the F-35 does use DSI. The key benefits are less complexity, less weight, lower production costs and lower maintenance costs compared to traditional inlets.