Navigate your phone settings and first go to about phone. From there go to software information. You should see your build number. Tap the build number several times in a row and developer options will be unlocked. This gives you access to developer options and a whole new set of customization features
I always unlock these, if only to visualize taps. USB debugging is also cool because of scrcpy, a program that allows you to see and control your phone from your pc.
I played Limbus Company entirely via scrcpy (the steam version was giving me issues), and the experience was perfect. No quality issues, no noticeable lag or delay, I frequently forgot it wasn’t running natively.
yeah scrcpy is also a lifesaver if you screen breaks. I was able to access my phone when mine did