This thread is interesting as I didn't realize that people had issues with the Switch chargers. The only Switch hardware complaints I see are about Joycon drift.
My Switch is now a bit over a year old and I haven't had any issues, but I also have never unplugged the actual charger from the wall yet because I mostly play docked. When I do play handheld, I just put it back on the dock to charge it. Whenever this pandemic ends and I can actually feel like I can travel again, if I take the Switch with me obviously I won't bother taking the dock, so I'd have to deal with this if it happens.