I wrote words in the wrong order before and at first glance it looked right. Next time I had to restore my Seed from my paper, it said it was wrong. I got desperate for days, until I tried to swap the word with the previous and luckily it did work for me.
That is why I like wallet like Electrum. After the wallet has generated you the seed phrase, you still have to input it using the virtual keyboard nthst Electrum will display. That is enough to know that the seed phrase that you wrote down on a paper for backup is correct and not wrong. Some wallet do it in the lazy way. It is good to verify and make sure the seed phrase are correct. I have done the mistake on Electum but I was able to know after I was unable to fully setup the wallet
What I normally do whenever I create a new seed is to snap it with another phone because I don't like stories that touches the heart as most times I normally create new seeds for several purposes so am always very careful with it. After snapping it then I write it down in my diary book and check very very carefully before I delete it from the phone though what I normally do most times is to rephrase the whole words in case someone incidentally gets access to my diary book and sees it so that's the safe way I normally do in other to protect my seeds.
Zaguru12 has corrected this already. It is not good to take the screenshot of your seed phrase. Do not also rephrase, you can just use passphrase. With passphrase, the wallet generates different keys and addresses. People that will need to access the wallet needs the passphrase. Backup your seed phrase and passphrase differently in different locations. Having like two or three backups each.