The SU-47 Berkut is a Russian fighter jet prototype built in the 90s. It was developed around testing a forward swept wing concept, as well as creating composite materials required
The YF-23 Black Widow was the direct competitor to the F-22 Raptor in the late 90s. The design was meant to be stealthier and faster in a strait line. The
The Su-57 is Russia's latest fighter jet. In contrast with many American aircraft this plane does not prioritize stealth as highly. It's just stealthy enough to get in dogfighting range,