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)
Step 1:  Open the  Settings
Step 2:  Tap on  General
Step 3:  Tap on  Accessibility
Step 4:  Tap on  Motor & cognition
Step 5:  Tap on  Touch input
Step 6:  Tap on  Touch and hold delay
Step 7:  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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