You are not getting it. A seed phrase is not a password - its the master key to your whole crypto stash. Equating it to a banking login misses how dangerous it is. A password manager keeps all your different logins handy so you can easily use websites and stuff. But I dont really see why you would save a seed phrase in there when you barely ever need it, if at all.
That is completely dependent on the value of your own bitcoin versus the value of your bank account.
If you have a million US dollars in you bank account but only a thousand
dollars worth of bitcoin in your wallet,
then having your bank account hacked is much more dangerous.
Your approach introduces a single point of failure that is entirely avoidable. Dont store your seed phrase online, period. Its not "an option worth considering"; its a major security flaw.
No it doesn't. Which is why I advised using multiple layers of security including passphrases, encrypted files,
2 factor authentication, etc. If one layer fails you are still protected by the others.