In order for a "touch and hold" to be recognized, such an input must be pressed on the screen for at least half a second, and this delay before the input is recognized can be adjusted as desired on the LG smartphone.

Android 9 | LG UX 9.0
Touch and hold delay -  Open the  Settings
Touch and hold delay -  Tap on  General
Touch and hold delay -  Tap on  Accessibility
Touch and hold delay -  Tap on  Motor & cognition
Touch and hold delay -  Tap on  Touch input
Touch and hold delay -  Tap on  Touch and hold delay
Touch and hold delay -  Choose desired  delay
  1. Open the Settings
  2. Tap on General
  3. Tap on Accessibility
  4. Tap on Motor & cognition
  5. Tap on Touch input
  6. Tap on Touch and hold delay
  7. Choose desired delay

LG Instructions
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