Hi guys, not sure you guys facing Airpods Pro Earbud buzzing?

Currently My Airpods Pro 1st Gen, Left side earbud buzzing intermittently. I have been using it and no issue for the past 2 years, but the buzzing came recently.

The buzzing getting serious day by day. I have cleaned the earbud, rub away the dirt. But it still persist.

I am thinking whether want to replace it via Apple authorize seller for $89 (RM420++) for a left earbud, or just buy 2nd Gen instead.