I've noticed another issue: 2FA software fragmentation. Over the past 30 years, I've accumulated more than 600 online accounts (many of them dormant), with about 25-30% offering 2FA. As a result, I now have three separate apps for generating codes. I could consolidate them into one, but, frankly, I'm too lazy. So instead, I often find myself scrambling between different 2FA apps and devices just to locate the right account.