I wanted to reinstall macOS. It failed at 99%. Some AFPS error. So I started restoring from my TM backup and went to sleep. Today, when I turned on my Mac, it booted into Windows, and the Mac volume is gone. Fun.
edit: Internet Recovery recognizes my TM backup, but doesn't do anything when I enter my NAS credentials.
edit 2: Installing Lion right now..
edit 3: Apparently, I have to update to El Capitan first before I can update to Catalina. But I can't log in to the MAS. I'm supposed to enter my 2FA key, but there's no field to do so.. 🤦♀️