Here they equate collection of personal data with transfer of personal data. But this is not very intuitive: I usually think of collection of data and transfer of data as rather different activities. It would be if we collected the data on a server in EU and then transferred all that data (via some internal process) to a server in US.
But I guess when you collect the data over the Internet from a user in a different country, the data is technically being transferred directly to your server in the US. But who is doing the transfer? I would argue that it is not me who is transferring it; it is the user who transmitted/sent the data to my app. I'm collecting it from them, but not transferring it. Collecting seems like more of a passive activity, while transfer seems like a more active activity (maybe not if it's all automated).
So if these terms are equivalent, then they should replace all instances of "transfer" with "collect". That would make it much clearer and harder to mistakenly assume this doesn't apply to oneself. Or if there is a nuanced difference between the two activities, then the differences should be explained, such as examples of when collection may occur without transfer occurring.