Maintenance Meetup WordPress

How to properly bckup, update WordPress & plugins – Step by step to WP 5.5

This article is also as a topic shared on this WordPress Meetup!
Step 1 Backup Step 2 Check The Compatibility of Plugins & Themes. Step 3 Update plugins & theme which is compatible. Step 4 Update to WordPress 5.5! Step 5 Check, Check, Check. Step 6 Restore (if necessary)