Hi there. I've got a 2021 Model 3 I picked up in December 2020. My Pixel 5 along with some other test phones constantly has wireless charging issues with the OEM wireless charger. After getting onto the road, it can take 5 minutes or a few hours for the charger to no longer work for that phone. I can move it between pads and nothing. I can throw another different phone on there and that'll work for a short while but also stop charging (tested with a Samsung Galaxy S8, Pixel 3XL, iPhone X). Occasionally the see the wireless charging kick back up again, but showing an estimation of ~12 hours to charge back up to 100%.
I've brought it into a service center a few times now (so many that I feel bad about it) and have gone over with their tech what it could be. They've replaced the wireless charger but I was still able to reproduce the issue on the road. They held onto the car for a week, parked, but couldn't reproduce it. I'm appreciative that they're comfortable talking with me about the issue at the engineering level.
I'm wondering if anyone else with a 2021 Model 3 on this thread has been having similar issues?