WeTransfer just changed their ToS to allow them to train AI on any files you transfer through them.
Don't use there service, especially for work that you don't have the right to relicense to them (e.g., commercial work that's exactly the most likely to create the huge files WeTransfer specializes in).
(ETA: this is already going boom so I'm muting it.)
@mwl i use my #Nextcloud Instance. To Share any File with Full Control over it. Also i can create Dropoff Link if needed. So the Recipient of the Link can Upload the Files secure and directly to me.
In my company i see that some customers use #swisstransfer as alternative.