He used recreate. I think recreate are banned beacuse my friend use recreate and his run was not approved

Oh,yes.But I think you need message any mod to reject him

https://www.speedrun.com/mc/run/zqgned9m if this is the run you're talking about, then it was submitted before that was a rule (submitted 27th of march 2021, rule was added 21st of april 2021)

Recreate before 1.16 only used the world seed and settings like that. In 1.16+, Recreate copies datapacks, which are against the rules