Does the conclusion of special relativity also apply to general relativity?

definitely not applicable. Otherwise einstein spent ten years studying general relativity, which would not be a big joke.

in the special theory of relativity, there must be a strictly defined inertial system. Only when the reference system is an inertial system does the special theory of relativity hold. However, we know that there is no inertial system in the universe, so the special theory of relativity does not hold! This also shows that special relativity is not applicable to general relativity. However, einstein introduced a principle-equivalence principle. The equivalence principle is divided into weak equivalence principle and strong equivalence principle. The weak equivalence principle holds that the dynamic effects of inertial force field and gravitational field are locally indistinguishable. The principle of strong equivalence holds that the "dynamic effect" is promoted to "any physical effect". (It should be emphasized that the equivalence principle is only valid for local inertial systems, but not necessarily for non-local inertial systems. In this way, in the local inertial system, special relativity can be used. However, it should be noted that the use of special relativity here is not unlimited, but should be handled by absolute differential calculus in curved space.