FileZilla is a popular free file transfer client.
It supports 2FA, but you need to configure it correctly:
When you connect, you might be asked “Remember password?”. We recommend that you do not let FileZilla save your password. If you do, please use the option to protect it with a master password, this is more secure as the password can then not easily be stolen from disk.
Guides, documentation and FAQ.
Applying for projects and login accounts.