I had four tasmota preflashed athom plugs die on me in less than a year. As long as they worked they were perfect but they don't last... Hope they addressed the issue meanwhile
They were always on, used them as power monitors. One on my washing machine, one on the 3d printer, one on the tumble dryer. One on and off depending on the season, christmas tree and similar.. They all died the same way, at some point never turned on again without any apparent reason.