Not sure if this is a wider product quality issue, but I have had two athom smart plugs (UK version) fail over the last few days, going in to a boot cycle and then shortly after failing to boot at all, with only electrical noise coming from the device. Both plugs running esphome 2021-11-04.
I have quite a few others that are still working fine at the moment though.
That os a good piece of work, Zygfryd Homonto. Now, if Athom would respond to my emails requesting replacement I'd maybe buy some of theier other products.
I agree with your comment "Shame on Athom anyway".