This topic reminds me that I have that one,
Newbies - Read before using exchanges or investing. I will quote only the section that relates to the OP's lesson.
[5] Testing seeds, private keys, wallet backup first, and only deposit money in those wallets when testing results are good
After verifying wallets (if that feature is available), and installing wallet on your devices, and doing back ups (in the [4] step). Now, it is time to test those backups on same devices or on other devices.
Checking all of those backups to make sure that in case your devices broken technically, you will be able to recover your wallets (there is no mispelling on seeds, private keys, etc.)