How did you reverse?

[MsLolita]

Hi, reversing the web version is of course no problem, but how to reverse the Threads application, I can't figure out. I used httptoolkit, which could not decode the https traffic. I also used fiddler, which did not show the requests normally. So I would be very grateful if you could explain how you were able to sniff the traffic, or maybe link to the tutorial you did.