If you're new to threads, you're probably worried that people will be notified if you screenshot their profile or thread.
Does Instagram announce screenshots?
Here's what happens
Fortunately, Threads doesn't notify anyone when you screenshot someone's thread, profile, or photos. This also applies to screen recording someone's thread.
There is no direct messaging feature on the thread yet, but if it becomes available, they won't be notified when you screenshot the conversation.