Hold on! Before you rush to upgrade, here are the things to do:
MacOS Big Sur compatibility: Find out if your device will work with the new OS
Software that has been tested for macOS Big Sur on M1 Chipset
Check software compatibility for macOS Big Sur on Intel Chipset
Are all your peripheral devices compatible?
Is all your installed software compatible?
Do you have the installers for that software, if you need to reinstall?
Make sure a full backup of your computer is completed before upgrading
Once you go through the list and decide to upgrade
