If you wish to remove your facebook account you must accept the change of the GPDR on facebook.com and that is weird. A simple login to remove would be enough!
If you download your files, then when you use the link to retrieve your files it lets you in and you can deactivate the account.<p>The main pain is that you need to remove messenger separately - which is difficult with a deactivated account!<p>Probably best to remove messenger first