Some purists here will interject and say that what I just told you is not safe. It is safe. Relative to what you were doing, it's a great deal safer if you do what I just advised.
Okay, it's as safe as the safety precautions that he had done while the wallet is online and while the seed phrase was stored on plain text and online.
But it's not as safe as a Cold-Storage wallet which is created entirely offline.
Does that satisfy your definition of "
almost 100% safe"?