You make regular backups

You should also think about important apps such as 2-factor apps or password managers when making your backup. The settings can usually be easily exported from these. If possible, use open source backup software such as "oandbackup" or "Neo Backup". However, these require root rights. A simple regular copy of your most important data on a USB stick is also a good start! Remember that "No Backup, No Mercy" is an arrogant attitude. Not everyone has the knowledge and technical capabilities for backups. Help each other!