Unofficial APKs can be injected with spyware or adware.
: While the app may install, you might see a "Switch to YouTube.com" prompt. Some users "patch" this by clearing the app data or using specific root-level tweaks to bypass the update check. download youtube for android 412 patched
Android 4.1.2 is over a decade old. Most modern versions of the YouTube app (Version 17.35 and higher) require at least Android 8.0 or newer to function. The primary issues you'll face include: Unofficial APKs can be injected with spyware or adware