Per CNN, this is what the reports findings:
Takeaways from special counsel John Durham’s report on FBI’s Russia-Trump probe
Durham finds FBI rushed to investigate Trump
Claims FBI had no real evidence of collusion before launching probe
Claims of FBI personnel bias
Durham claims FBI had different standards for Trump and Clinton
FBI failed to corroborate Steele dossier allegations
Complete text: Takeaways from special counsel John Durham's report on FBI's Russia-Trump probe | CNN Politics
You can agree or disagree with what is in the report, it will not matter to me. Your claim that there was "no politicization of the FBI", however, is contrary to the claims made in the report - They conclude the opposite, at least according to CNN.
It is important to be accurate about these things...Spreading false or misleading information helps no one.