Currently, several Pixel 4a 5G units face touchscreen problems that emerged after the security update in December 2020. Android Police first identified the problems related primarily to clunky navigation, citing complaints from Google, the Google Issue Tracker and XDA forums in the help forum. Google has identified the bug now and has promised a patch.
A Google community specialist wrote on the official complaint thread, “We are aware of this problem and a patch will be included in an upcoming software update. In the meantime, Google suggests you try the following tips to enhance the responsiveness of your device:
a)Tap the middle of the button or the side of the button/icon farthest away from the edge of the monitor while pressing icons on the edge of the screen.
b)Use the tip of your finger or thumb instead when clicking on icons, like the navigation buttons on the bottom of your screen. This will further increase awareness of touch.
There is no clarification on precisely when Google expects to release the promised patch to the touchscreen problems of the Pixel 4a 5G. The January security update did not roll out, so it could still be some time away. Until then, even though they might not be the most intuitive way of accessing your phone, you will just have to live with the aforementioned workarounds.