I would also usually advise anyone to do offline storage as you said, and also suggest to keep electronic backups using a device that is rarely used to connect to anything.
Storing the seed phrase electronically is not good. If your device gets compromised by an infostealer, you will lose your funds.
But recently I just saw someone who was able to store his seedphrase by remembering it in his head, and it was quite challenging, I have tried to do it but have not succeeded, maybe I will try harder to be able to do it, and I think this method should be done by everyone who feels capable of doing it.
Memorizing the seed phrase is not good either. If you had a severe illness or an accident, it could lead to memory loss and thus, the loss of your funds. Write your seed phrase on a clean piece of paper or crest it on metallic steel and keep it somewhere safe.