No, Proton Drive does not currently support a native, blind "File Request" feature like the ones found in Dropbox, OneDrive, or Google Drive.
​While you can generate public links that allow outside users to upload files, Proton’s current setup behaves like a shared folder rather than a secure submission drop box.

​The Current Workaround (and its Limitations)
​You can technically receive files from non-Proton users by doing the following:
​Create a new, empty folder in your Proton Drive.

​Generate a shareable link and set the permissions to "Anyone with the link can edit."

​The Problem: Because this grants "edit" permissions rather than "write-only" access, anyone who visits that link can see, download, or delete any files already uploaded to that folder by previous visitors.
​If you need a secure, blind workaround:
​If you need to use Proton Drive for this but cannot allow uploaders to see other clients' or third parties' documents, you must create a unique, dedicated folder and link for each individual sender. Once they notify you that the upload is complete, you should immediately move the files out of that shared directory and disable the link.