1. Connect Controller to mobile device
2. Build & Run attached project
3. Click one of the buttons at the top of the scene by using a touchpad

Expected result: Nothing happens
Actual result: Keyboard is opened

Tested controller: PlayStation DualShock 4 Controller

Reproducible: 2022.2.015

Reproducible on:
Samsung Galaxy S21 Ultra (SM-G998B), Android 11, CPU: Exynos 2100, GPU: Mali-G78
VLNQA00340, Samsung Galaxy Note20 Ultra 5G (SM-N986B), Android 10, CPU: Exynos 990, GPU: Mali-G77
Google Pixel 4, Android 12, CPU: Snapdragon 855 (SM8150), GPU: Adreno (TM) 640
VLNQA00405, Galaxy Z Flip3 5G, CPU: Snapdragon 888, Android: 11, GPU: Adreno 660

Not reproducible:
VLNQA00269, Samsung Galaxy S10e (SM-G970F), Android 10, CPU: Exynos 9 9820, GPU: Mali-G76

Can't test because the cursor doesn't appear after connecting Controller:
VLNQA00287, Motorola moto g(7) power (moto g(7) power), Android 9, CPU: Snapdragon 625 MSM8953, GPU: Adreno (TM) 506
VLNQA00090, Samsung Galaxy S8 (SM-G950U), Android 7.0, CPU: Snapdragon 835 MSM8998, GPU: Adreno (TM) 540

iOS - the trackpad isn't supported

Not reproducible with Old Input System