The first thing any Android power user does with their phone is unlocked the Developer options. The hidden menu has many low-level tweaks, such as forcing Dark mode on all apps, speeding up animations, or enabling hidden Quick Setting tiles. And most modifications require nothing more than hitting a toggle.
Because many of the changes are buggy, Google hides the secret menu by default. However, if you're careful and make changes one at a time, you usually won't have any issues. Even if you find that none of these toggles are for you, to really use your Galaxy S20, S20+, and S20 Ultra like a pro, you need to use the menu for ADB commands, a series of instructions sent via the computer that lets you do things beyond what's capable in the phone's UI.
Open "Settings" from the app drawer or the gear icon in the Quick Settings menu. Then, scroll to the bottom of Settings and select "About Phone." Choose "Software information," then tap on "Build number" seven times in rapid succession. In between these taps, a toast message will appear informing you how many more taps are needed to become a "developer."
After you reach seven taps, you'll be prompted for your lock screen PIN, gesture, or password, if you have one set. Once entered correctly, a new toast message will appear for "Developer mode has been turned on" — the confirmation that you've unlocked it successfully. Return to main Settings and below "About phone" is your new menu item, "Developer options."
Unsure of what to do first? Check out our guide (link below) for the top modifications available in "Developer Options."