Also, I think it's not that the Russians do not want a deep interceptor platform like the Chinese, but the PAK-FA (Frontal Aviation Weapons System) isn't it. Their interceptor is the MiG-31 which is supposed to be replaced in the future with the MiG-41.
Also notice that the Russians recently cancelled their PAK-DA subsonic flying wing bomber project in favor of the supersonic Tu-160M2. Compare this with the Chinese approach on the H-20 or the US with the B-21 Raider. They went into a completely different direction and are seeking an asymmetric response to the US. Russia has a larger country to defend and a lot of its cities are far from each other. The possible targets are also further away. Russia wants to keep their capability to strike the continental US mainland with their bombers. They also want to be able to redeploy their assets quickly from one place to another. This way they can quickly pivot their air force from Europe to Asia and make do with a smaller fleet.
Also notice that the Russians recently cancelled their PAK-DA subsonic flying wing bomber project in favor of the supersonic Tu-160M2. Compare this with the Chinese approach on the H-20 or the US with the B-21 Raider. They went into a completely different direction and are seeking an asymmetric response to the US. Russia has a larger country to defend and a lot of its cities are far from each other. The possible targets are also further away. Russia wants to keep their capability to strike the continental US mainland with their bombers. They also want to be able to redeploy their assets quickly from one place to another. This way they can quickly pivot their air force from Europe to Asia and make do with a smaller fleet.