Sorry to hear you are not having a good experience with time tracking integrations @Dumitru_Andronache and I completely understand where you are coming from.
There is an existing thread in the #productfeedback category requesting a native Time tracking
In case you haven’t yet, I would suggest to upvote it: Please build time tracking into Asana
Thank you for sharing your feedback with us Dumitru! I hope you have a great Friday!